Catalog: Estate Jewelry (1586)

An exquisite Art Deco platinum filigree ring set with a 1.14 carat old European cut diamond surrounded by caliber-cut onyx and coral in a sort of Moorish design. The diamond is graded as H color and SI1 clarity. All the stones are set in millgrained bezel settings. The surrounded coral has very saturated, even coloring that contrasts beautifully with the onyx and the sparkle of the diamond. Strong color contrast is especially associated with Art Deco jewels. The shank is set with three small diamonds to each side of the crown. The ring is completed with an ornately pierced gallery.

Origin: Ca. 1925. Condition: excellent. Dimensions: crown, 3/4" diameter. Finger Size: 7-3/4. Weight: 4.8 gr. Approximate Total Diamond Weight: 1.2 cts.

An exquisite platinum and diamond brooch in the form of a turtle by Tiffany & Co. In the 1990’s, Tiffany created a small line of nature-themed jewels loosely based on antique pieces in its design archives. The turtle pin was one of the most luxurious pieces in the series. The domed back is pave-set with 90 2.5-point round brilliant cut diamonds and the legs and head are set with additional 28 1.5-point diamonds. The eyes are collet-set blue sapphires. The back has a pendant hook, so it can be worn suspended from a chain. The reverse is marked “1996 Tiffany & Co. PT950”. The original selling price was $15,750.

Origin: America, ca. 1996. Condition: mint. Size: 29/32” x 1-3/8”. Weight: 14.5 grams. Approximate Total Diamond Weight: 2.67 carats.

An exquisite Art Deco platinum pendant in the form of a rose set with old mine cut, old European cut, single cut and pear cut diamonds. The design is delicately worked in a sort of stencil effect, the negative spaces between diamond-set areas appearing as the veins of leaves or the deeper recesses of the rose blossom. The center of the rose is set with a .96-ct pear shaped diamond, H/VVS2. The smaller diamonds are well-matched in the H range SI clarity. A diamond-set leaf-shaped bail completes the design. The mounting is stamped with European platinum marks.

Origin: Europe, possibly Poland, ca. 1925. Condition: excellent. Dimensions: 1-3/4" x 1-3/16". Weight: 9.4 gr. Approximate Total Diamond Weight: 4.6 cts (.96 ct pear).

An imposing Victorian butterfly brooch of exceptional quality and grand dimensions, the fore- and hindwings studded with rose cut diamonds set in silver-topped 18K gold and bordered with oval cabochon rubies set in gold. The thorax is formed of a round opal and the abdomen is a large squarish cabochon pink tourmaline. The design is completed with diamond antennae and emerald eyes. The opal has excellent fire with a good deal of orange and green in the flashes of light. The rubies outlining the wings have medium-light color and are well-matched to the large tourmaline forming the butterfly’s abdomen. The back of the brooch shows masterful à jour work with well-finished piercing to allow light through the stones. The back also retains the original gold pinstem and c-clasp that can be removed with a gold screw assembly. The brooch most likely originally had a comb attachment so the butterfly could be worn in the hair. The brooch is stamped with French gold hallmarks.

Origin: France, ca. 1875. Condition: excellent. Dimensions: 2” x 2-7/8”. Weight: 27.2 gr. Approximate Total Gemstone Weight (by estimation and formula): diamond, 2.39 cts; ruby, 14.26 cts; tourmaline, 6.87 cts; opal, .97 cts.

A stunning Mikimoto 18K yellow gold ring set with a 10.50 mm South Sea Akoya pearl surrounded by curved rows of round brilliant cut diamonds. The pearl has white body color with slight rose overtones. The nacre has bright luster. The surface is free of blemishes. The diamonds are D/E color and VVS clarity, with good symmetry and polish. The quality of workmanship, materials and overall design are so obviously special, that the ring is immediately identifiable as Mikimoto. The interior of the shank is fully hallmarked for 18K gold and bears Mikimoto’s oyster shell mark. The ring is presented in its original box and is accompanied by its original Mikimoto grading certificate. It is also accompanied by a 2010 independent NAJA appraisal confirming the above information and stating a replacement value of $16,500.

Origin: Japan. Condition: excellent. Finger Size: 5 (could be enlarged with disturbing the marks). Size: crown, 3/4” wide; 9/16” high. Total Diamond Weight: 1.37 carats.

A magnificent vintage platinum brooch formed as a floral bouquet featuring three primary blossoms tied at the bottom with a ribbon, and set with a mix of old single cut, old Swiss cut, old European cut, old mine cut, early modern brilliant round cut and French cut diamonds and round brilliant cut sapphires. The center flower features a .83-carat, old mine cut diamond of fancy cognac color and SI2 clarity; surrounded by sapphires. A flower bud is represented just above by a prong-set .34-carat old European cut diamond of fancy light cognac color and VS2 clarity. Leaves are bead-set with mixed cut white diamonds, all in the E-G color range with VS1 to SI2 clarity. Berries are represented by collet-set blue sapphires. The sapphires display P2B zone 30 color (moderate purplish blue) on the Gem Dialogue scale and have VS clarity. The hinged double pinstem is worked in 14K white gold, but the body of the brooch is tested and guaranteed platinum.

The range of different diamond cuts in this brooch clearly indicates it was specially made to order for a customer using the diamonds already in her possession. Such commissioned pieces are often not fully hallmarked, hence the lack of a mark for platinum or a maker's mark. The quality of workmanship is superb.

The brooch is accompanied by a June 2008 written appraisal (GIA & NAJA) conforming to the above description and assigning a replacement value of $16,500.

Origin: America, ca. 1950. Condition: excellent, all original. Size: 2" x 1-1/4". Weight: 16.3 gr. Approximate Total Gemstone Weight: diamond, 1.84 carats (1.17 carats of fancy colored diamonds); sapphire, 2.1 carats.

A stunning bombe-form ring, worked in 18K yellow gold and platinum. The center of the ring is set with 63 square cut blue sapphires invisibly-set into platinum, flanked on either side by a total of 62 round brilliant cut diamonds pave-set in gold. Mystery-setting, accomplished by cutting a thin groove into the girdle of each stone and then sliding it along a complex network of fine platinum wires, was invented jointly by Van Cleef & Arpels and Cartier in the 1930s. Today, it remains one of the most technically difficult stone-setting techniques and is tackled by very few houses. The platinum and gold components were fashioned separately and then assembled with a screw mechanism after the sapphires and diamonds were set. The design of the mounting itself locks the stones in place. The sapphires are well-matched and are color-graded as dark, strong blue (B7/5) and overall clarity-graded as eye-clean. The diamonds are of similarly high quality, with H color and VS2 to SI1 clarity. The interior of the shank has a worn maker’s mark. Tested and guaranteed 18K gold and platinum.

Origin: America, ca. 1990. Condition: excellent. Finger Size: 7. Dimensions: shank tapers from 1/4" width at the back to 19/32” at the crown. Weight: 17.0 grams. Approximate Total Gemstone Weight: sapphire, 5.25 carats; diamond, 2.17 carats.

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.

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.

A superb 6.42 carat natural star ruby set into a late Retro 18K yellow and white gold mounting. The ruby is color-graded as medium-dark, moderately strong purple-red (R/P 6/4). The ruby has fine clarity, without eye-visible inclusions. The cut has excellent symmetry and a high dome, resulting in a well-centered bright star with straight, evenly spaced, long rays. The ruby is set in a very attractive 18K yellow gold setting with geometric white gold accents. The interior of the shank is stamped "18K 750".

Origin: America, ca. 1950. Condition: excellent. Finger Size: 11. Dimensions: 1/2" wide at crown, tapering to 3/8" at back of shank. Weight: 8.5 grams. Approximate Total Gemstone Weight: 6.42 carats (by measurement).

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.

A magnificent pair of Retro leaf-shaped earrings and a matching brooch by Cartier. The leaves are worked in 18K yellow gold and are exquisitely detailed with delicate veining against a softly bloomed matte finish. The stems are worked in palladium, a metal from the platinum group that was used during World War II when platinum was banned from use in jewelry. The stems are bead-set with round single- and brilliant-cut diamonds. The diamonds are very good quality, as expected in vintage Cartier. The brooch has a hinged double pinstem and small safety hooks. The earrings retain their original clip backs with the hinged comfort tabs. The brooch is signed "Cartier" and is marked "18K". The earrings are signed "Cartier", are marked "18K" and "Pal" and have the design serial numbers.

Origin: French design (probably retailed in NY), ca. 1940. Condition: excellent, all original, sharp detail. Size: brooch, 1-29/32" x 1-3/4"; earrings, 1-1/16" x 25/32". Weight: brooch, 21.1 grams; earrings, 10.9 grams. Approximate Total Diamond Weight: 1.0 ct.

A spectacular demi-parure comprising a pair of earrings and a pendant/brooch worked in 14K yellow gold and set with Persian turquoise. The earrings have round surmounts decorated with applied bead and ropetwist decoration in the Etruscan Revival taste suspending ornately geometrical elements set with square turquoise cabochons. The pendant is made to match and has a bail that remains hidden when worn as a brooch. The turquoise is very well-matched. Tested and guaranteed 14K.

Origin: America, ca. 1865. Condition: excellent, one stone at the bottom of the pendant has darkened to green (typical of Victorian turquoise). Dimensions: earrings, 2-7/8" long from top of earwire; pendant/brooch, 3" x 1-1/4". Weight: 39.6 gr.

A very fine Victorian Albert chain fashioned from a set of nineteen sizable natural gold nuggets (approximately 20-24K). The nuggets are connected by short sections of handmade chain worked in 14K. The chain has a t-bar enhanced with small nuggets and a short length of chain to suspend a fob. Nugget jewelry became popular during the California Gold Rush in 1849 and again during the Alaska Gold Rush in 1896. Nuggets were difficult to find and a collection this large was a significant indicator of wealth. Tested and guaranteed for gold content.

• Origin: America, 1850-1900
• Condition: excellent
• Dimensions: 15-1/2” long (could be extended by adding additional plain links at the clasp)
• Weight: 55.3 grams

This classic late Victorian bangle bracelet is set with a row of gorgeous opal cabochons in graduated sizes enhanced with old European cut and single cut diamonds. The opals have superb play of color evenly spread across the stones’ surfaces. Primary colors are blues and greens with shots of orange and red. The interior of the bracelet has a jeweler’s inventory number, but no maker’s mark. It is presented in a fitted box that appears to be original. The interior of the box bears the name Wm Mossman, Jeweller & Goldsmith, 135 Princes St (Edinburgh, Scotland). The clasp is stamped with French import marks. Tested and guaranteed 15K.

• Origin: Scotland, ca. 1900
• Condition: mint
• Dimensions: 7/16” wide at front; 6-1/8” circumference
• Weight: 17.3 grams
• Approximate Total Gemstone Weight: opal, 7.36 carats; diamond, .37 carat

A phenomenal and very heavy Art Deco dress set comprising a pair of double-faced cufflinks and three matching shirt studs. The faces have a slightly rounded triangular outline and are trisected by raised bands of channel-set square step-cut blue sapphires. The points where the sapphire bands meet are collet-set with brilliant round cut diamonds. The visual effect is reminiscent of airplane propellers. The natural sapphires have medium-dark, vividly saturated, slightly violetish-blue color. The diamonds are estimated at G color, VVS clarity. The platinum surfaces have a slightly matte finish. Each face is stamped "10% Irid/90% Plat". The spring mechanism on the backs of the studs are 14K white gold.

Origin: America, ca. 1925. Condition: excellent. Size: cufflinks, 5/8" x 5/8"; studs, 1/2" x 1/2". Weight: 42.89 grams. Approximate Total Gemstone Weight: diamond, .90 carat; sapphire, 2.75 carats.

An impressive 18K yellow gold hinged bangle, the front set with a cabochon emerald surrounded by old mine cut and rose cut diamonds arranged in a floral motif. The larger diamonds are in buttercup settings that add more depth to the design. The emerald has good color with very light treatment and is probably of Brazilian origin. The back side of the bracelet is pierced to retain a feeling of lightness. The hinged opening and oval shape makes the bracelet comfortable to wear. The clasp is stamped with French 18K gold marks and an unidentified master goldsmith’s mark.

• Origin: France, ca. 1870
• Condition: excellent, all original
• Dimensions: interior circumference, 6-11/16”; width, 1-3/16” at front tapering to 3/8” at back
• Weight: 30.6 grams
• Approximate Total Gemstone Weight: emerald, 2.15 carats; diamond, 1.3 carats

A chunky French tank bracelet worked in rose and yellow gold. The 1937 World’s Fair gave rise to a fashion for “tank jewelry,” so called for its perceived resemblance to the treads of armored tanks. This bracelet features angular ridges alternating with rounded elements that creates a woven visual effect. The angular segments are reeded, and the center reed of each is stippled for textural interest and is worked in bright yellow gold to contrast with the rose tint of the rest of the bracelet. The tongue of the clasp is marked with French 18K marks and an unidentified master goldsmith’s mark.

• Origin: France, ca 1940
• Dimensions: 13/16” x 7-1/2”
• Weight: 56.0 grams
• Condition: excellent, no dings