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...

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...

An exceptional Boucheron cocktail ring set with nine round brilliant diamonds and thirteen round emeralds. The diamonds are graded as E/VVS1 and the emeralds have intensely saturated medium-dark green color and very good clarity. The emeralds are characteristic of stones from Colombia. The glamorous marquise shape is generously sized, covering the entire first portion of the finger...

A stunning pair of 18K yellow gold earrings in a waterfall or cascade motif by Chaumet. Each earring is composed of five strands of bezel-set gemstones of varying lengths. They are designed so three of the strands appear to descend from the front of the earlobe and two strands from the back. Each of the gemstones is fully articulated so the strands swing freely when being worn. The cascade design is a more modern interpretation of a classic Art Deco style...

An exquisite mid-century modern 18K gold and diamond necklace by André Vassort for the Parisian jeweler O. J. Perrin. The necklace comprises 47 butterfly-shaped graduated links, each separately hinged so they lie perfectly flat around the neck. The links are worked in the heavily textured style favored by Vassort. The center 21 links are each studded with a diamond so delicately set that it appears to float over its link. The diamonds are graded as E color and VVS1 clarity...

Fabulous 1960's David Webb seven-strand emerald bead torsade necklace finished with an 18K yellow gold clasp featuring a cushion-shaped rock crystal plaque centering a oval cabochon emerald flanked at the top and bottom with round brilliant-cut diamonds. This design is so evocative of the classic chunky Webb style, and the workmanship is of the finest quality. The diamonds are F color, VVS2 clarity...

A fabulous pair of mid-century 18K yellow gold and platinum earclips by Cartier set with brilliant round cut diamonds. The gold surfaces are cast in a rough texture that contrasts beautifully with the bright diamonds set in platinum. The diamonds, as expected of Cartier, are extremely fine quality (E color/VVS2 clarity). French jewelry became more flamboyant in the 1960s, as wartime restrictions eased...

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...

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...

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...

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 Cartie...

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. A...

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...

An outstanding 18K gold pendant set with an amazing enameled alpine scene by Carlo Poluzzi (1899-1978), the greatest Swiss enamellist of the the 20th century. Poluzzi sometimes used the very difficult technique of applying translucent enamel over an engraved gold plate to produce brilliant sunrise or set effects as seen in the left side of the sky in this example. This required multiple coats of different colored enamels which increased the likelihood of unwanted cracks during the multiple firin...

A lovely vintage 18K yellow gold and diamond ring by Boucheron. The top of the band has a quilted ("matelassé) pattern accented with crossed bands set with brilliant round-cut diamonds (E/VVS2). The setting is heavy and quite comfortable to wear. The interior of the shank is signed “Boucheron” and is marked “Or 750 / 885513912”. The outside of the shank is stamped with the “tete d’aigle” mark and with Boucheron’s maker’s mark.

Origin: France, ca. 1990

Condition: excellent

Classic, signed Tiffany & Co. 18Kt yellow gold solid link bracelet with a heart shaped tag. The bracelet is 7 ½ long and marked 750 (18Kt) on the clasp and the heart tag. The links of the bracelet are ¼” wide and the heart tag measures 1” X 7/8”.

This exceptional rope and tassel broach is made of 18Kt yellow gold. One tassel is decorated by ten full cut diamonds and the other with 10 round natural sapphires. The 2” tall and 1 ¾” wide broach is hallmarked “Tiffany & Co, 18Kt, Italy”.

An 18K white gold ring in classic Van Cleef & Arpels style, set with round brilliant diamonds and round sapphires. The sapphires are intensely colored and have eye-clean clarity. The diamonds are E/F color and VVS2 clarity. The interior of the shank is signed and bears complete serial numbers, maker’s mark and French 18K guarantee stamps.

Origin: France, ca. 1980. Condition: excellent. Finger Size: 5-1/2. Weight: 8.0 grams. Approximate Total Gemstone Weight: sapphire, 1.00 ct; diamond...