A fine pair of modernist 18K yellow gold earclips by Burle Marx set with intricately carved amethysts in the “forma livre” (free form) style. Haroldo Burle Marx was particularly known for his use of large gemstones, often fashioned by carving or tumbling rather than faceting, a technique he invented in 1948. The color of the amethyst is deep purple and is nicely even throughout the stones. The gold surfaces are decorated with the fine florentined engraving typical of Marx’s pieces...

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

An extremely rare and very important 18K yellow gold ring set with a white pearl and a black pearl designed by Jean Dinh Van for Pierre Cardin. The design features a squared shank with a flat open gallery enclosing the two 7.0mm pearls. The pearls are drilled and rotate freely on their axes. The pearls are of very nice quality with superb luster and natural color...

A delightful vintage 18K yellow gold brooch in the form of a leopard by Fred of Paris. The leopard's spots a created of black enamel and his eyes are set with round emeralds flanked by round single-cut diamonds. The gemstones are of superb quality, as expected from one of the world's great jewelry houses. The brooch has a two-prong clip on the back. It bears French 18K gold hallmarks and is signed "Fred-Paris."

Origin: France, ca. 1960. Condition: excellent. Size: 2-3/8" x 1-9/16"...

A stunning vintage 18K yellow gold ring featuring an outstanding 1.60-carat Burmese ruby surrounded with diamonds by Tiffany & Co. Tiffany has not sold rubies since 1999 due to the U.S. embargo of Myanmar, and the design of this ring suggests it was made in the 1950s or 60s. The inside of the shank is marked “Tiffany & Co.” and “18K”.The ring is presented in its original dark blue velvet, satin-lined ring box marked “Tiffany & Co.”...

A fascinating 18K yellow gold cocktail ring featuring a "forma livre" (free-form) amethyst by the famed mid-century Brazilian designer Haroldo Burle Marx. Burle Marx invented the technique of carving and tumbling forma livre stones in 1948, and the style became his signature. The amethyst chosen for this ring has distinct color zoning that creates an interesting interplay of deep and light purple coloring. The setting is finished in the florentine style typical of Burle Marx's work...

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...

An impressively large 18K yellow gold Venetian Etruscan fob charm or pendant in a crown shape set with large oval amethysts enhanced with smaller round amethysts. The gold surfaces are enhanced with twisted wire, rosettes and beading. The amethysts have very rich, deep violet coloring. Marked “750” for 18K.

Origin: Italy ca. 1960. Condition: excellent. Dimensions: 1-3/8” x 1-1/8” x 1-3/8” (excluding bail). Weight: 25.2 gr. Approximate Total Gemstone Weight: 27.29 cts.

A nice man's ring featuring a large cat’s eye quartz cabochon. The stone has pronounced chatoyancy (the cat’s eye effect) with excellent color contrast. The interior of the shank is stamped “10K.”

• Origin: America, ca. 1960.
• Dimensions: cabochon, 13.7 x 11.4 mm; 5/8” wide at crown, tapering to 1/8” at the back of the shank.
• Finger Size: 12-1/4.
• Approximate Gemstone Weight: 7.4 carats.

An elegant modernist long chain necklace worked in 18K yellow gold and featuring black onyx and green nephrite jade beads. The onyx beads are carved in a melon motif, while the jade beads are left smooth. The jade has even, lightly-mottled color and good translucency. At 33”, the necklace is long enough to be worn at full length or doubled. The combination of strong colors with the yellow gold is very chic. The clasp is marked by an unidentified maker “Ste F”.

Origin: France, ca...

A very rare pair of 18K yellow gold “Sputnik” earrings by H. Stern. This classic design features a golden dome studded with various colored gemstones including green tourmaline, pink tourmaline, almandite garnet, aquamarine, amethyst and citrine. Each piece of Sputnik jewelry has a unique appearance depending on the combination of gemstones used and even how they are arranged in relation to one another...

A nice 18K yellow gold fob charm in the Etruscan Revival style. The triangular charm is decorated with applied rosettes along the shoulders, and the faces and bottom are enhanced with wirework. Each side is collet-set with an oval cut almandite garnet, and the bottom features a large oval cabochon aventurine quartz. The garnets have strong red coloring, and the aventurine quartz has nice sparkle (“aventurescence”) from the green mica inclusions. Tested and guaranteed 18K.

Origin: Italy...

An excellent multigem "Sputnik" ring in the style of H. Stern. Stern, the world's largest dealer in colored gemstones, created this design in the 1950's to showcase the variety of colored stones available from its Brazilian mines. This particular ring has a very brightly colored selection of stones including dark and light green tourmaline, pink tourmaline, amethyst, citrine, spessartite garnet, almandite garnet and aquamarine. The stones are collet-set above the yellow gold dome in a way tha...

A nice pair of vintage “Sputnik” earrings set with citrines. This style was popularized by H. Stern in the 1950s as a way to show of the company’s unparalleled access to the world’s finest colored gemstones. The design eventually became known as “Sputnik” because of the perceived resemblance to the Soviet satellite active during the early years of the space race. Generally, Sputnik pieces were set with multi-colored stones, but occasionally a piece turns up set only with one stone...

An elegant 18k yellow gold ring featuring an oval brilliant cut aquamarine accented at compass points with folds of gold nestling small round brilliant diamonds. The aquamarine has medium light pure blue color and eye-clean clarity. The cut is very good with excellent brilliance. The interior of the shank is stamped “18K.”

• America, circa 1960.
• Dimensions: crown, 3/4 x 11/16” (20 x 17 mm).
• Weight: 6.2 grams.
• Finger Size: 7 1/4.
• Approximate Total Gem...

A heavy 18K yellow gold lantern-shaped fob charm decorated with ornate beading and twisted wirework in the Victorian Etruscan Revival style. The fob is further enhanced with vermicelli stippled engraving on the upper shoulders—an unusual treatment. The sides are set with navette-shaped carnelian cabochons in scalloped collet settings. The carnelians have nice caramel coloring and good translucency. Tested and guaranteed 18K.

Origin: Italy, ca. 1960. Condition: excellent. Size: 1-1/2”...

A delightfully fun 14K yellow gold ring featuring a perky bunny rabbit standing on his hind legs. The ring was created from a vintage lapel pin with the addition of a 14K gold shank. The back of the rabbit is marked "14K."

• Origin: America, ca. 1970
• Condition: excellent
• Dimensions: rabbit, 7/8" x 1/2"
• Finger Size: 6 1/2
• Weight: 4.3 grams

A heavy 18K yellow gold ovoid fob charm decorated with ornate beading and twisted wirework in the Victorian Etruscan Revival style. The fob features oval and round mixed-cut citrines in fluted collet settings. The stones along the sides are in a medium honey color, while the bottom stone is deep amber. Tested and guaranteed 18K.

Origin: Italy, ca. 1960. Size: 1-3/8” long. Weight: 15.2 grams. Approximate Total Gemstone Weight: 32.2 carats.