Kensington House Antiques and Sterling Silver Kensington House
Antiques
All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #1434441
Kensington House Antiques
$1,895.00
A classic pair of 18K yellow gold earclips by acclaimed jewelry designer Barry Kieselstein-Cord. The earrings are designed as rectangular plaques centering slightly domed centers surrounded by beaded borders. The surfaces have a hand-finished look and are bloomed for the slightly matte texture characteristic of the designer’s work. The earrings have substantial weight. The backs are fully signed and are dated 1986.
  • Origin: America, 1986
  • Condition: excellent, all original
  • Dimensions: 15/16” x 11/16”
  • Weight: 15.5 grams
All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #1434522
Kensington House Antiques
$2,895.00
A pair of 18K yellow gold clip-on earrings in Keiselstein-Cord’s timeless “Rope Twist” design. These earrings were produced in at least two sizes, these being the. The surface is bloomed to create the semi-matte finish characteristic of the designer’s work. The earrings are fully marked and dated for 1982, making this among his earliest designs.
  • Germany, 1982
  • Condition: excellent
  • Dimensions: 7/8” x 7/8” (22 x 22 mm)
  • Weight: 35.5 grams
All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #1299201
Kensington House Antiques
$1,195.00
pair of 18K yellow gold earclips by Barry Kieselstein-Cord resembling a spiraled seashell. The gold has the softly burnished texture typical of Kieselstein-Cord’s designs in the 1980s. The omega clips are original, but posts could easily be added. Each earring is signed.

Origin: America, ca. 1985. Condition: excellent, all original. Dimensions: 1-1/8” x 1/2". Weight: 13.6 grams.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #1140532
Kensington House Antiques
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An extremely fine pair of 18K yellow gold half-hoop earrings channel-set with princess cut diamonds and square cut blue sapphires. Like all of Wayne’s jewelry, the gemstones are of the very top quality. The diamonds are F color and VVS2 clarity. The sapphires are extra-fine quality, with strongly saturated pure blue color and eye-clean clarity. The earrings have the original posts with omega backs. Each earring is marked with the model number “4”, the serial number “188156” and “750”. Each is also has Wayne’s signature.

Origin: America, ca. 1980. Condition: excellent. Size: 9/16” wide; 3/4” long. Weight: 11.3 grams. Approximate Total Gemstone Weight: diamond, .8 ct; sapphire, 1.54 cts.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #1110953
Kensington House Antiques
SOLD
A stunning pair of 18K yellow gold earrings in the "Heliocoidal" pattern by lauded designed Michael Good. The earrings are constructed in the anticlastic raising technique in with the piece is formed from a sheet of gold and then twisted along all three dimensions to create an organic shape that Good refers to as "molten energy." Each piece is created entirely by hand and does not employ any machine made parts such as earwires or clasps. Older examples of Good's jewelry is difficult to find. Each earring is marked "750 M Good".

Origin: America, ca. 1987. Size: 2-7/8" long. Weight: 8.2 gr.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #1373032
Kensington House Antiques
$895.00
A classic 14K yellow gold "Tree of Life" pin by Mikimoto. This design is an enduring classic available only from the higher-level Mikimoto boutiques. The pin is set with twelve cultured pearls, ranging in size from 4.89 to 6.79 mm. The pearls are of exceptional AAA quality, with cream body color, rose overtones, a bright luster. The back is marked with Mikimoto's oyster shell signature.
  • Japan, circa 2010
  • Excellent condition
  • 1 1/4" x 1 11/16"
  • 8.2 grams
All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #1314122
Kensington House Antiques
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A classic 14K yellow gold “Tree of Life” pin by Mikimoto. This design is an enduring classic available only from the higher-end Mikimoto boutiques. The pin is set with twelve cultured pearls, ranging in size from 3.99 to 5.42mm. The pearls are of exceptional AA quality, with cream body color and pronounced rose overtones. The luster is very bright and the surfaces are nearly blemish-free. The back is marked 14K and has Mikimoto’s oyster shell signature. At Mikimoto’s Place Vendome boutique in Paris, this pin is currently offered for approximately $1,500. Origin: Japan. Condition: excellent. Size: 1-3/8” x 1-1/8”. Weight: 6.0 gr.
All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #997164
Kensington House Antiques
$850.00
A classic vintage Mikimoto 14K yellow gold pin featuring ten cultured Akoya pearls, ranging in size from 6.25 to 7.58 millimeters. The pearls are estimated at A+ quality, with cream body color and rose overtones, and strong orient. The nacre is thick and lustrous and the surfaces are blemish-free. The back is signed with Mikimoto’s hallmark.

Origin: Japan, ca. 1980. Condition: excellent. Size: 1-7/8” x 1-1/4”. Weight: 12.1 grams.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #821727
Kensington House Antiques
$795.00
A classic vintage Mikimoto brooch featuring pearls set in 14K yellow gold. The swirled design includes ten pearls of superb quality, estimated at AA quality. The surfaces are smooth, the luster is bright and the body color is cream with rose overtones. The pearls range in size from 5.5 to 7.7 millimeters. The gold “leaves” are pierced to provide a sense of lightness despite the pin’s relatively generous size. The back retains the original typical Mikimoto clasp and is signed with Mikimoto’s hallmark and “K14”.

Origin: Japan, ca. 1980. Condition: excellent, all original. Size: 2-1/4” x 1-3/8”.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #357319
Kensington House Antiques
$495.00
Elegant signed Mikimoto 14K yellow gold brooch set with a cluster of five pearls. The pearls are of the exceptional quality that only Mikimoto produces--a beautiful luster and very white body color. The back is stamped with Mikimoto's hallmark.

Origin: Japan, ca 1970. Condition: excellent, no damage, all original. Size: 1" x 2"; pearls 5-6mm. Weight: 5.0 grams.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #1352631
Kensington House Antiques
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An elegant 18K yellow gold, Akoya pearl and diamond heart ring by Mikimoto. The diamond-studded heart is centered with a cluster of three 4.3-4.5mm pearls, graded as extra-fine AAA—the highest possible quality rating. They have fine luster and white body color with rosé overtones. The diamonds are E/VVS. The interior of the shank is stamped with Mikimoto's hallmark.

The ring is accompanied by a 2006 written Bailey, Banks & Biddle appraisal for $2150.

Origin: Japan, ca. 1990. Condition: excellent. Finger Size: 6-3/4. Dimensions: heart, 5/8" x 1/2". Weight: gr. Approximate Total Diamond Weight: .20 ct.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #564837
Kensington House Antiques
$4750.00
Gorgeous pair of signed Mikimoto 18K yellow gold, pearl and diamond earrings. Each earring features a cluster of five 6.0—6.5 mm pearls, topped with a golden bow and sprinkled with prong-set round brilliant-cut diamonds. The pearls have white body color with strong rosé overtones. The luster is bright and the surfaces are free of blemishes. The pearls are extra fine AAA—in other words, the absolute finest quality available anywhere in the world. The diamonds are of equally fine quality, rated at E color, VVS clarity. The backs have posts and omega clips. Each earring is marked with Mikimoto’s shell hallmark and “750” for 18K. The earrings are presented in their original Mikimoto hinged box, along with the original Mikimoto gift box.

The earrings are accompanied by an August 2006 written appraisal for $6,500 by Bailey, Banks & Biddle’s Mikimoto specialist appraiser.

Origin: Japan, ca. 1980. Condition: excellent, all original. Size: 1-3/32” x 15/16”. Weight: 16.5 grams. Approximate Total Diamond Weight: .25 carat.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #833477
Kensington House Antiques
$7950.00
A magnificent pair of signed Mikimoto earrings featuring 13.75 mm mabe pearls in 18K yellow gold twisted knot settings accented with diamonds. The pearls are of the finest quality, estimated at AA. They have cream body color and extraordinary cream body color with rose overtones and superb luster. The brilliant round-cut diamonds are of similarly fine quality, estimated at VVS clarity and E color. They are bead set in 18K white gold to accent the color. The backs are finished with posts and omega clips. The posts could be easily removed for wear as clips-on earrings without altering the Mikimoto signature. The backs are signed with Mikimoto's oystershell mark flanked by "NY", indicating that they were made for Mikimoto's flagship New York store on 7th Avenue, and "18".

Ca. 1980. Condition: excellent, all original. Size: 1-1/16" diameter. Weight: 23.5 grams. Approximate Total Diamond Weight: 2.5 carats.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #611106
Kensington House Antiques
$2,250.00
Superb Mikimoto 18K yellow gold and pearl brooch in the shape of a cello. The cello’s body is set with 25 fine AA pearls graduating from 3.8 to 5.2 millimeters, and the tailpiece is studded with three round brilliant-cut diamonds. The f-holes, fingerboard, pegs and scroll are worked in gold and are beautifully detailed. The pearls are of exceptional quality with light cream body color and rosé overtones. The luster is very bright and the pearls are well matched. The diamonds are SI1/2 clarity and G/H color. Mikimto figural brooches are very rare. The back is marked with Mikimoto’s hallmark and “750” for 18K gold. An equally fine brooch in our collection, in the shape of a harp (Item #514948) was appraised in March 2006 by the Mikimoto specialist at Bailey, Banks & Biddle for $3,250.

Origin: Japan, ca. 1990. Condition: excellent, all original. Size: 2-1/4” x 1-1/8”. Weight: 10.5 grams. Approximate Total Diamond Weight: .1 carat.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #1306282
Kensington House Antiques
$895.00
A classic Mikimoto ring featuring a cluster of 6.3mm pearls crowned with a star of six round brilliant diamonds of G color and VVS2 clarity. The pearls have fine luster, with cream body color and rose overtones, and are graded AA. The shank is stamped with Mikimoto’s hallmark and for 18K gold.

Origin: Japan, ca. 1980. Condition: excellent. Dimensions: crown, 5/8” diameter. Finger Size: 7. Weight: 5.4 gr. Approximate Total Diamond Weight: .18 ct.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #514948
Kensington House Antiques
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Superb Mikimoto brooch in the shape of a harp. The harp’s sounding board is set with a row of ten fine AA pearls graduating from 3.3 to 5.8 millimeters, and the strings are studded with round brilliant-cut diamonds. The neck and column, both worked in gold, are beautifully detailed. The pearls are of exceptional quality with light cream body color and rosé overtones. The luster is very bright and the pearls are well matched. The diamonds are SI1/2 clarity and G/H color. Mikimto figural brooches are very rare, and this example is nearly certainly a custom-made piece. The back is marked with Mikimoto’s hallmark and “750” for 18K gold. The brooch is accompanied by a March 2006 written appraisal from the Mikimoto specialist at Bailey, Banks & Biddle for $3,250.

Origin: Japan, ca. 1990. Condition: excellent, all original. Size: 2-1/32” x 1-5/32”. Weight: 11.8 grams. Approximate Total Diamond Weight: .12 carat.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #1078244
Kensington House Antiques
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A classic 14K yellow gold “Tree of Life” pin by Mikimoto. This design is an enduring classic available only from the higher-end Mikimoto boutiques. The pin is set with twelve cultured pearls, ranging in size from 4.01 to 5.18mm. The pearls are of exceptional AA quality, with cream body color and pronounced rose overtones. The luster is very bright and the surfaces are nearly blemish-free. The back is marked 14K and has Mikimoto’s oyster shell signature. At Mikimoto’s Place Vendome boutique in Paris, this pin is currently offered for approximately $1,500.

Origin: Japan. Size: 1-3/8” x 1-1/8”. Weight: 5.9 gr.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #420833
Kensington House Antiques
$425.00
Beautiful Mikimoto 18K yellow gold and pearl brooch. Opposing swirls of gold surround a cluster of five Mikimoto pearls, ranging from 5 to 6 millimeters. The quality of the pearls is excellent (estimated at AA quality), with very high luster and a bright white body color and rosé overtones. The back is marked with Mikimoto’s hallmark and “750” for 18K gold.

Origin: Japan, ca. 1990. Condition: excellent, all original. Size: 1-27/32” x 13/16”. Weight: 8.5 grams.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1960 item #1279214
Kensington House Antiques
$1,650.00
A very good example of a mid-20th century pearl and jade cluster ring by Ming's of Honolulu. Wook Moon opened his shop in 1940 and specialized in creating interesting designs that combined traditional Hawaiian motifs and gems popular in the South Pacific and Asian communities. This cluster ring features are green, black, white, yellow and red jade spheres nestled among ivory-colored pearls. The jade has good translucency and the pearls have very attractive luster, smooth surfaces and distinct gold overtones. Most rings by Ming's had gold leaves interspersed among the gems, but this example is particularly attractive because there are no leaves--just 22 colored spheres tightly packed into a very large cluster. The back of the ring is constructed with a double shank to provide more stability. The setting is entirely handmade and is stamped "Ming's" and "14K".

Origin: Hawaii, ca. 1950. Condition: excellent, all original. Finger Size: 8-3/4. Dimensions: crown, 1-1/4 x 1-1/8". Weight: 14.7 grams.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #1352146
Kensington House Antiques
$8,950.00
A superb modernist bracelet in 18K yellow gold set with multi-colored gemstones by Bruno Guidi. Guidi was the lead designer and chief goldsmith the the acclaimed Brazilian jeweler Haroldo Burle Marx for more than 30 years. Each piece was created entirely by hand starting from a piece of gold, without the aid of any molds or pre-made elements. In this bracelet, each of the ten links features a colorful cabochon gemstone native to Brazil—amethyst; citrine; moonstone; and blue, pink and green tourmaline. The links are individually hinged so the bracelet is flexible and comfortable. The clasp is stamped "Brazil 18J Bruno Guidi."

After Burle Marx's death in 1972, Bruno Guidi and his brother Flavio continued working for a few years, making many of the designs they had originally created for Burle Marx.

Origin: Brazil, ca. 1992. Condition: excellent. Dimensions: 1/2" wide; 6-1/2" long. Weight: 41.9 gr. Approximate Total Gemstone Weight: 7.7 cts.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #927088
Kensington House Antiques
$28,500.00
A stunning pair of 18K yellow gold hinged bangle bracelets from the "Cometes" line by Chanel Haute Joaillerie. The bracelets are designed as simple band of channel-set brilliant round diamonds punctuated at regular intervals with 5-armed stars, each bead-set with a brilliant round diamond. Though the bracelets appear to be solid, each of the sections is hinged at the star, so the bracelet is flexible and comfortable to wear. The clasps are hidden beneath one of the stars. Each bracelet comprises 72 diamonds of exceptional quality, with F/G color and VVS clarity. The total carat weight of each bracelet is approximately 3.5 carats. Each bracelet is fully stamped with French 18K gold hallmarks and is signed "Chanel." Each is also marked with its unique serial number.

Chanel's fine jewelry is sold in only a few of the company's major boutiques (Paris, New York, etc.) and is never sold at any other retailer. These bracelets are accompanied by a letter on Chanel's letterhead dated May 6, 2009 indicating a replacement value of $19,700 each. The letter includes the information that the bracelets were originally purchased from the New York boutique in 2007 and the serial numbers noted in the letter match those on the bracelets.

Stars were one of Coco Chanel's favorite motifs and she used them in the very first piece of fine jewelry she designed for herself in 1932. Chanel launched its fine jewelry collection in 2003 with the "Cometes" line which uses five-armed stars in endless varieties.

Origin: France, 2007. Condition: excellent, all original. Size: interior opening, 2-3/16" x 1-3/4"; width, 5/16", interior circumference, 6-3/16". Weight: pair, 48.3 grams. Approximate Total Gemstone Weight: 7.00 carats (pair).

NOTE: Though they look wonderful worn together, we will consider selling the bracelets separately.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #1236332
Kensington House Antiques
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An elegant and exceptionally high quality pair of earclips in 18K yellow gold set with diamonds and sapphires by A Péry et Cie. The earrings feature fields of pave-set round brilliant diamonds bisected by bands of rectangular cut blue sapphires. The diamonds are E color and VS2 clarity; the sapphires are medium-dark strong blue (B6/5) color and eye-clean clarity. Each earring is fully stamped with French 18K gold marks and is signed by A. Péry et Cie. The clips have holes, so posts could be added without disrupting the integrity of the earrings.

Péry worked as manufacturer for Van Cleef & Arpels, but also worked for Boivin, Mellerio and other important French jewelers. Péry was responsible for some of VCA most iconic 20th century designs including the Ludo bracelet and the zipper necklace. The Péry ateliers are now owned by VCA.

Origin: France, ca. 1980. Condition: excellent, all original. Dimensions: 14 x 24 mm (9/16 x 15/16 in). Weight: 17.4 gr. Approximate Total Gemstone Weight: diamond, 1.5 ct; sapphire, 3.25 ct.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1950 item #904085
Kensington House Antiques
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An elegant pair of Retro 14K yellow gold earclips by Tiffany & Co. The earrings are fashioned as a fold of pleated gold, each with a single 5-mm cultured pearl in the center. The pearls are of fine quality, with cream body color and pronounced rose overtone. The original clips are the patented adjustable style often seen on Tiffany earrings from the 1940s and 50s. The backs are marked “Tiffany & Co.” and “14K”.

Origin: America, ca. 1945. Condition: excellent, all original. Size: 1” x 11/16”. Weight: 9.1 grams.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1970 item #1379845
Kensington House Antiques
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A very attractive 18K yellow gold ring set with an amethyst by the famed mid-century Brazilian designer Haroldo Burle Marx. Burle Marx is well-known for his free form designs, but his collaborations with his brother, the landscape architect Roberto Burle Marx, had a much more linear, abstract feel as in this piece. The amethyst at the center is of the very finest quality, with intensely purple color and excellent clarity. The gold is completed with the finely worked florentined finish typical of Burle Marx's work. The interior of the shank is fully signed.

Burle Marx worked in his native Brazil, and his only international boutique was at the Watergate Hotel in Washington, DC. He was chosen by the Brazilian government to create state gifts for Queen Elizabeth, Empress Nagako of Japan, Empress Farah Diba of Iran, Queen Margarethe of Denmark, Prime Minister Indira Gandhi of India, and many others. In Hollywood circles, he was a favored jeweler to Merle Oberon and Natalie Wood.
  • Brazil, ca 1970
  • Excellent condition
  • 1-1/16" wide at crown, tapering to 3/16" at the back of the shank
  • Finger Size: 5-3/4
  • 17.0 grams
  • Approximate Gemstone Weight: 3.08 carats
All Items : Estate Jewelry : Gold : Designer Signed : Pre 1970 item #833487
Kensington House Antiques
$6950.00
A fabulous 14K yellow gold and platinum brooch by William Ruser commissioned to celebrate the astounding victory of the Pittsburgh Pirates over the New York Yankees in the 1960 World Series. The brooch is designed as one of Ruser's classic waif-like children, this time dressed in a pirate's costume. One eye is set with a blue sapphire and the other is covered with a platinum eyepatch highlighted with matte black enamel. A platinum earring dangles from one ear. In one hand he holds a baseball bat and in the other a World Series crown set with sapphires and a ruby. The pirate appears to be walking across a bouquet of flowers made of natural freshwater pearls. Each flower is centered with a prong-set brilliant round-cut diamond. Small gold flowers centered blue sapphires complete the bouquet. The back is engraved "Pittsburgh Pirates World Champions 1960". It is also signed by Ruser and marked appropriately for 14K gold and platinum.

Ruser was famed for his jewels featuring dogs, cherubs and children. He was favored by major Hollywood stars such as Joan Crawford and Loretta Young. He also accepted unusual commission opportunities that allowed for creative use of his favorite design elements. This is one of the wittiest examples of Ruser's work we've seen. He used only the finest raw materials and the design is masterful. Along with a tie bar he designed for one of the stars of the Indy 500, this brooch is probably the finest example of Ruser's sports-related commissions.

Origin: America, 1960. Condition: excellent, all original. Size: 2-1/4" x 2". Weight: 27.0 grams. Approximate Total Gemstone Weight: ruby, .02 carat; sapphire, .43 carat; diamond, .15 carat.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #953903
Kensington House Antiques
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A classic pair of heavy 18K yellow gold earrings by Gucci. The earrings are in a triangular shape with gently rounded corners and are worked in an open basketweave pattern. The design incorporates both matte and polished surfaces to create a greater sense of depth. The earrings retain their original Omega clips, but the posts could easily be removed for wear as earclips. Each earring is marked 18K and is signed “Gucci”.

Origin: Italy, ca. 1995. Condition: excellent. Size: 7/8” x 7/8”. Weight: 17.9 grams.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1970 item #790044
Kensington House Antiques
$25,500.00
An exquisite and very fine 18K yellow gold jewel by Henry Dunay, one of the greatest American jewelers of the latter 20th century. The piece comprises a 32" necklace of domed, oval gold links joined by polished arched connectors. The outer surfaces of the links are stippled in a roughly textured finish that contrast nicely with the arched connectors. Two of the links have hidden hinged clasps so that the necklace can be separated into a shorter necklace and a bracelet. Two of the arched connectors are joined together at the midpoint to suspend a detachable pendant inspired by ancient Mayan motifs. The pendant is quite large, but the openwork and geometric approach to the design maintain a sense of lightness. The pendant can also be worn as a brooch. All pieces are signed by Dunay and are marked 18K.

The piece is accompanied by a written appraisal (GIA & NAJA) indicating a total replacement value of $34,000. Mr. Dunay, himself, indicated that he recalled making the piece in 1968 or 1969. At that time he did not systematically document his creations, so the jewel has not appeared in published works. He suggested he would charge $34,000 to recreate the piece today.

Origin: America, ca. 1968. Condition: excellent, all original. Size: full necklace length, 32" bracelet length, 8-1/2"; shortened necklace length, 23-1/2"; pendant/brooch, 2-11/16" diameter. Weight: 249.09 grams/8.009troy ounces.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #497469
Kensington House Antiques
$795.00
Beautiful 14K yellow gold and cultured pearl brooch by Mikimoto. The swirling gold frame is punctuated with very high quality pearls post-set pearls and can be worn either horizontally or vertically. The pearls have superb lustre and Mikimoto's classic ivory color with rose overtones. The sizes range from 5 to 7mm. The back is stamped with Mikimoto's hallmark.

Origin: Japan, ca. 1980. Condition: excellent, all original. Size: 1-15/16" x 1-3/8". Weight: 10.0 grams.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #763902
Kensington House Antiques
$795.00
An elegant vintage 14K yellow gold and pearl brooch by Mikimoto. The stylized feather design is typical of Mikimoto’s vintage pieces and is particularly suitable for daytime wear. The pearls, ranging in size to 5.5 to 7.2 millimeters, have ivory body color with rose overtones and superb luster. The quality is estimated at A+1. The back of the pin is marked “K14” and bears the Mikimoto oyster shell hallmark.

Origin: Japan, ca. 1970. Condition: excellent, all original. Size: 2-1/4” x 1-3/16”. Weight: 10.5 grams.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #854871
Kensington House Antiques
$1295.00
A classic pearl and diamond ring by Mikimoto. A single 8.4 millimeter pearl is set at the center of the ring and is surrounded by small round brilliant-cut diamonds. The pearl is of very fine quality, estimated at AA. The body color is cream with rose overtones. The surface is smooth and lustrous. The diamonds are of equally fine quality. Typically, Mikimoto uses diamonds in the F-G color range with VVS clarity. The shank is stamped with Mikimoto’s oyster shell hallmark and “K18”.

Origin: Japan, ca. 1980. Condition: excellent. Finger Size: 6-3/4. Crown Size: 1/2" X 1/2" X 7/16” high. Weight: 3.5 grams. Approximate Total Diamond Weight: .2 carat.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #442997
Kensington House Antiques
$425.00
Lovely signed Mikimoto flower-form brooch in 18K yellow gold set with pearls. The flower petals are made up of very fine quality 6-6.5mm pearls, estimated at AA. The nacre is thick and very lustrous. The body color is white with green/rose overtones. The back of the pin is marked with Mikimoto’s hallmark and the gold content.

Origin: Japan, ca. 1990. Condition: mint. Size: 2-1/8” x 1-1/8”. Weight: 6.5 grams.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #262438
Kensington House Antiques
$375.00
Elegant 14K yellow gold and pearl brooch in a modern bouquet design. The four pearl "flowers" are set atop golden stems that are tied with a swirling gold ribbon. Each pearl is 5.5 mm and has the wonderful white body color with silvery overtones characteristic if Mikimoto pearls. The nacre is thick and the skins are very smooth. The back is marked with Mikimoto's hallmark and "K14".

Origin: Japan, circa 1970. Condition: excellent, all original. Size: 1-5/8" x 1-1/8". Weight: 6.0 grams.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1980 item #940598
Kensington House Antiques
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A colorful pair of 14K yellow gold earrings by popular New York jewelry designer Sonia Bitton, whose collections have been sold at Neiman Marcus and Saks Fifth Avenue. The earrings feature round cut amethysts, citrines, peridots, blue zircons, pink tourmalines and garnets, each set in a movable bezel. When being worn, the bezels move freely on their framework, allowing the gems to shimmer. The back are signed “Sonia B” and are marked “14K”.

Origin: America, ca. 2000. Size: 13/16” x 7/16”. Weight: 13.2 grams. Approximate Total Gemstone Weight: citrine, .8 ct; amethyst, .8 ct; zircon, .7 ct; tourmaline, .5 ct; peridot, .5 ct; garnet, .6 ct.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1950 item #965575
Kensington House Antiques
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A nice vintage tie bar in a bamboo pattern by Tiffany & Co. The bar is worked in 14K yellow gold, and each end features a blue sapphire cabochon collet set in platinum. The small amount of platinum contrasts nicely with the deep blue of the sapphires. The bamboo design was reworked in the 1960's and became one of Tiffany's most successful sterling silver flatware designs. Its use in jewelry, however, is uncommon. The relatively short length works perfectly with the narrow width of today's ties. The back is marked "Tiffany & Co. 14K."

Origin: America, ca. 1945. Condition: excellent. Size: 1-15/16" long. Weight: 6.1 grams. Approximate Total Gemstone Weight: .34 ct.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1900 item #858358
Kensington House Antiques
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An extraordinarily fine antique 18K yellow gold ring by Tiffany & Co. set with a mixed cushion cut Burmese blue sapphire surrounded by old mine cut diamonds. All the gems are of the finest quality. The sapphire has been certified by the American Gemological Laboratories (see the following paragraph). The diamonds, ranging in size from approximately .22 carat to .29 carat each, are estimated at G/H color and SI to VVS2 clarity. The sapphire is set in a prong setting, while the diamonds are set in a shared-prong setting that creates a filigree appearance around the back of the crown. The shoulders of the shank are lightly decorated with beaded engraving.

Nearly all sapphires marketed in the last 150 years have been heated to improve the color. This is considered a standard practice. Other treatments, such as filling in fractures, altering the color family, etc., though considered bad practice, are nonetheless quite common. Fine Burmese stones from the Mogok region that have not been treated in any way are exceedingly rare and only show up in upscale jewels from makers such as Tiffany and Cartier. This particular stone, with its bright coloring and beautiful cut, is nothing short of stunning.

The AGL Brief (dated April 2008) indicates that the sapphire is natural; displays specific properties and characteristics associated with stones from Burma; measures 7.39 x 6.69 x 5.82 mm; weighs 2.49 carats; is cut in mixed cushion, has blue color, and shows no heat or additional treatments. The brief further indicates that unheated sapphires are scarce. The original brief will accompany the ring.

Origin: America, ca. 1890. Condition: excellent, all original, interior of shank has a period monogram. Finger Size: 4-1/4 (The ring can be sized up and we would recommend that the work be performed by Tiffany). Weight: 6.0 grams. Gemstone Weight: diamond (estimated by measurement), 2.25 carats; sapphire (by actual weight), 2.49 carats.

All Items : Estate Jewelry : Gold : Designer Signed : Pre 1970 item #1414324
Kensington House Antiques
$2,495.00
A classic 1960's Tiffany & Co. stylized floral brooch in 18K yellow gold set with sapphires and diamonds. The cluster of four blossoms are heavily decorated with hammered and carved details accented with clusters of round brilliant cut diamonds and blue sapphires. Though the brooch is bold, the spikiness of the design keeps the overall design from feeling too massive. The diamonds are I color, SI1 clarity and the sapphires are medium, vivid blue color. The back is marked "18K Tiffany & Co."
  • Origin: America, ca 1965
  • Condition: excellent
  • Dimensions: 1-11/16" x 1- 3/4"
  • Weight 21.7 grams
  • Approximate Total Gemstone Weight: sapphire, .59 carat; diamond, .12 carat.