A stunning Art Nouveau 18K gold brooch featuring an enameled and engraved portrait of Pallas Athena, the Greek goddess of wisdom, horses and olives. Her beautifully engraved helmet is adorned with a small rose cut diamond. Her armor and the embroidery along the edges of her gown are also engraved. The quality of the painted enamel facial details and the background champleve enamel in royal blue is gorgeous. The edges of the medallion are enhanced with natural pearls...

A lovely 18K yellow gold bracelet designed as floral plaques separated by bezel set blue sapphire cabochons. Each elegantly pierced gold plaque depicts a rose encircled by scrolls and flanked by additional flowers. The backs of the plaques are engraved in a matching motif. The high-domed cabochons have fine deep blue coloring and show no indications of heat treatment. The clasp is stamped with French 18K marks.

• Origin: France, ca...

A fine modernist 18K yellow gold ring by Burle Marx set with an intricately carved aquamarine in the “forma livre” (free form) style. Haroldo Burle Marx was particularly known for his use of Brazilian gemstones, often fashioned by carving or tumbling rather than faceting, a technique he invented in 1948. The aquamarine’s deep, dusky blue color contrasts beautifully with the gold, which is worked with florentined engraving typical of Burle Marx’s pieces...

An elegant Belle Epoque 18K yellow gold negligee pendant necklace, the old mine cut diamond drops formed as pansies. Pendant necklaces of this type, called negligees (from the French word for "careless"), were so called because of their assymetry. The subtle pansy design is achieved by combining three larger diamonds at the top of each cluster to represent larger petals, and two smaller petals at the bottoms...

A very heavy 18K yellow gold bracelet worked in the form of interlaced knots, the center of each set with an old mine cut diamond. The diamonds are set in silver in the traditional manner of the 19th century. The stones have good J/K color and SI1 clarity. At 8-1/4" long the bracelet is very generously sized. The box clasp is marked "Waler 18K".

Origin: America, ca. 1890. Condition: excellent. Weight: 41.0 grams. Approximate Total Diamond Weight: 1.0 ct.

A heavy 14K gold curb link watch chain, finished with a movable t-bar, a dog clip, and a spring ring. The chain would be perfect to match up with one or more other heavy watch chains to create a unique layered look with multiple charms. Marked 14K.

• Origin: America, ca. 1900
• Condition: excellent
• Dimensions: 12-3/4" long
• Weight: 37.9 grams

A delightful Victorian reverse carved crystal pendant set in 12K yellow gold. The pendant depicts a Yorkshire terrier (Yorkie). He’s beautifully and deeply carved and painted in shades of brown and cream. The texture of his fur comes across very nicely in the design. The dog wears a blue ribbon around his neck and displays quite a lot of character with a bit of tongue sticking out to one side and one drooping ear...

An elegant late Victorian or early Edwardian 14K yellow gold long chain with opal double-cabochon stations at regular intervals. The stations are carefully arranged so that the opals are alternately spaced whether the necklace is worn at full-length or doubled. The clasp can also be used to suspend a pendant. The opals are good quality with even play-of-color, mostly in the blue/green range with occasional bursts of orange/red. The clasp is marked "14K."

• Origin: America, ca...

An exquisite openwork pansy brooch in 18K yellow gold topped with platinum. The portions representing the outer edges of the petals are set with 48 rose cut and table cut diamonds (averaging J color and ranging from SI2 to I2 clarity), while the flower is centered with a half-carat old European cut diamond (J/SI2) in a bezel mounting. The pin has an overall sparkly appearance and looks stunning against dark fabric...

An elegant pair of 18K yellow gold earclips by Haroldo Burle Marx set with intricately carved jelly opals in the “forma livre” (free form) style. Burle Marx was particularly known for his use of stones fashioned by carving or tumbling rather than faceting, a technique he invented in 1948. The moonstones have bluish overtones with broad flashes of pinkish-orange. The elongated shape of the stones, mirrored by the shape of the settings looks very good on the ear...

A superb pair of Victorian drop earrings featuring old European cut diamonds in buttercup settings surrounding oval mixed-cut rubies. The diamonds are separated with radiating lines of black taille d'epargne enamel. The rubies have a classic slightly purplish-red color with good intensity and eye-clean clarity. All rubies fluouresce in natural sunlight to some degree, and these rubies have a particularly strong reaction in bright sunlight, turning an intense red...

A heavy and finely made pair of 18K yellow gold stirrup (étrier) cufflinks set with calibre-cut blue sapphires designed by the Russian émigré jeweler Olga Tritt for sale at her Park Avenue boutique in New York. The arches of the cufflinks are set with rows calibre-cut intensely-colored blue sapphires.

Tritt specialized in antique jewelry, but supplemented her selection with an array of her own luxury designs, mostly made in France to her specifications...

A beautiful Art Nouveau bracelet worked in 18K yellow gold featuring oval blue sapphire cabochons accented with laurel wreath settings and alternating floral plaque links. The gold is very finely worked. The sapphires have medium dark, strong blue color (B6/5) and eye-clean clarity. They show no indications of heat treatment. The bracelet is completed with a concealed box clasp. The clasp is stamped with French gold hallmarks used outside Paris 1847-1919. The maker’s mark is partly obscu...

A vintage 18K yellow and white gold ring set with a .33 ct round brilliant cut diamond by Cartier. The colored gold is worked in a geometric design around the diamond. The diamond is graded G color, VS2 clarity. The ring has a substantial presence due to the width of the band. The interior is signed "Cartier", is marked "750", is dated "1989" and has the serial number "278QO.25".

Origin: America, 1989. Condition: excellent. Dimensions: 1/2" wide at front, tapering to 3/8" at back. Finge...

A beautiful 18K gold fancy-link long chain necklace. The links are fashioned in an ornate Renaissance revival style. The chain can be worn at full length, or the clasp can be attached to an open link partway down the necklace and a pendant suspended from the final link. The necklace is marked twice with French 18K marks and an illegible maker’s mark.

Origin: France, ca. 1900. Condition: excellent. Dimensions: 30-1/2” long. Weight: 18.3 grams.

Vintage watch chain circa 1940, 68 inches long, in 14K yellow gold, set with 10 chrysoprase beads, each flanked on both sides with crystal beads. Chrysoprase beads approximately 6-7mm in diameter. Watch swivel/spring ring closure. Excellent condition.

A striking Art Nouveau 18K gold and pearl necklace in the form of a pendant of chestnut leaves suspended from a cluster of chestnuts. The gold surfaces are entirely hand engraved with very fine detail. The pendant is set with a natural button pearl and suspends a second pearl at the bottom. The chain is enhanced with a series of tiny pearls, as well. Chestnut trees have traditionally represented fertility, but in Victorian flower language, came more to represent “luxury and abundance.” This ...

An impressive and beautifully-crafted large Victorian locket, each face carved from a single piece of onyx. The front cover is adorned with a gold floral spray studded with small natural seed pearls of the best quality. Seed pearls often have a chalky appearance but these have lovely luster and iridescence. The interior of the locket retains its original frame glass, as well as woven hair. The hair, of course, could easily be replaced with a portrait. The locket is suspended from an elegant...