Catalog: Estate Jewelry: Gold (1010)

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 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 very handsome Retro bracelet worked in rose and yellow gold links enhanced with engraving in a snakeskin texture. The color contrast is very attractive, and the links are made in such a way that the bracelet drapes very nicely on the wrist. The box clasp is stamped with Italian gold marks of the period and the goldsmith’s registry number 1 TO for Antica Ditta Marchisio (now Mattioli Gioielli). Founded in 1860, the house is the oldest jeweler in Torino, Italy, and was a maker for several luxury jewelry houses including Cartier.

• Origin: Italy, 1934-40
• Condition: excellent
• Dimensions: 11/16” wide; 8-3/8” long
• Weight: 53.6 grams

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

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 stunning heavy 18K gold bracelet enhanced with ornate chased engraving and royal blue champlevé enamel. Each link of the bracelet is hinged for comfortable wear, but the appearance is that of a solid bangle. The arched links are superbly engraved in a floral/foliate pattern that appears to be either mistletoe or myrtle. In the Victorian flower language, mistletoe would have been used to convey the meaning “I surmount all obstacles in the pursuit of love” and myrtle, “Good luck in marriage”. The arched links are finished with enameled borders in a Greek key design. The vertical hinge bars a enhanced with enamel in a checkerboard pattern. The design is so detailed that even the tongue of the concealed clasp, invisible when being worn, is fully engraved. Stamped with a French 18K mark.

• Origin: France, ca. 1860
• Condition: excellent, three areas (1/4”, 1/8” and 1/16”) of enamel loss along the borders
• Dimensions: 15/16” wide; interior circumference 7-1/4”
• Weight: 50.0 grams

A fine early French Art Nouveau orchid brooch, the flower petals carved from banded agate around old mine cut diamond stamens, all set atop an elegant gold stem set with rose cut diamonds. The flower is a single piece of agate, finished with a matte surface to suggest the texture of a real flower petals. The carver left streaks of a darker colored agate on the back to create the delicately-colored veining that shows through the petals. The petal at lower left is turned back on itself to enhance the realistic effect. The reverse is stamped with a "tete de Mercure" hallmark indicating 18K gold that was intended to be sold abroad. There is also an illegible master goldsmith's mark.

• Origin: France, ca. 1880
• Condition: excellent; all original; a few tiny fleabites on one petal visible only with 10X magnification
• Dimensions: 2-5/8" x 1-1/4"Weight: 10.25 grams
• Approximate Total Diamond Weight: .85 carat.

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

Exquisite 1950s triple strand pearl bracelet completed with generously diamond-set 14K white gold spacers and matching clasp. The 7mm pearls are of fine quality, with thick nacre and a lovely sheen, and are beautifully matched. The body color is ivory with silvery overtones. The quality is estimated at A1. Three swirled spacers and a matching clasp, each worked in 14K white gold complete the bracelet. Each piece is set with round brilliant-cut diamonds. The stones are of fine quality, estimated at H color and VVS clarity. Unlike most spacers that simply separate the strands, the spacers in this bracelet are constructed in a way that rows of three pearls seem to be set into the spacers themselves—a unique and particularly elegant style. The matching clasp, completely invisible when closed, is one of the best clasp designs we’ve seen in many years. The back of the clasp is marked “14K”.

Origin: America, ca. 1950. Condition: excellent, stringing is secure, no wear to pearls. Size: 7-5/8” long; 1-1/8” wide. Weight: 53.5 grams. Approximate Total Diamond Weight: 3.83 carats.

A very fine 18K yellow gold fancy link chain necklace featuring round and teardrop links interspersed with smaller navette-shaped links. Each of the handmade fancy links is further enhanced with elegant beaded decoration. Necklaces in this style were a quintessentially French design near the end of the 19th century and they look especially elegant when layered with other chains. The length is sufficient to be worn doubled. Stamped with French 18K marks.

Origin: France, ca. 1900. Condition: excellent. Dimensions: 32" long. Weight: 46.3 gr.

A fabulous pair of vintage earrings in 18K yellow gold set with diamonds by Tiffany & Co. The oval shape is formed of reeded bars interspersed with prong-set diamonds, creating a sort of basketweave texture. The diamonds are very fine, F color, VVS1 clarity. Each earring is marked “1992 Tiffany & Co. 750”. The earrings are presented in their original vintage box from Tiffany.

Origin: America, ca. 1992. Condition: excellent, all original. Size: 1” x 11/16”. Weight: 21.0 grams. Approximate Total Diamond Weight: 2.25 carats.