A classic 18K yellow gold tapered band by Tiffany & Co. set at the crown with an oval cabochon citrine. The stone has very nice slightly orangey-yellow color and eye-clean clarity. The ring has a very solid feel and can be worn by either a man or woman. The interior of the shank is marked “750” for 18K and is signed by Tiffany. This ring is no longer available at Tiffany, but originally sold for $2,150.

• Italy, ca...

A very rare 18K yellow gold ring set with a black pearl designed by Jean Dinh Van for Pierre Cardin. The design has an overall trapezoidal shape. The shank is doubled at the back and then comes together into a single head at the front, where it grasps a single black pearl. The 6mm pearl has nice lustre and even, natural coloring. The back of the shank is fully stamped with the French goldsmith's mark and "18K"...

A nice 18K gold Sputnik ring by H Stern, the dome bezel-set with nineteen round citrines, amethysts, pink and green tourmalines, garnets and aquamarines. This design was created in the 1950s to highlight the range of colored gemstones available from Stern's Brazilian mines. Each piece has a unique appearance depending on the particular selection and placement of the stones. The gems in this ring tend toward richer autumnal colors with a lot of garnet-red, gold and medium-dark green...

A classic Mikimoto ring featuring a cluster of 6.3mm pearls crowned with a star of six round brilliant diamonds of G color and VVS2 clarity. The pearls have fine luster, with cream body color and rose overtones, and are graded AA. The shank is stamped with Mikimoto’s hallmark and for 18K gold.

Origin: Japan, ca. 1980. Condition: excellent. Dimensions: crown, 5/8” diameter. Finger Size: 7. Weight: 5.4 gr. Approximate Total Diamond Weight: .18 ct.

A fine vintage Tiffany & Co stylized leaf brooch worked in 18K gold and set with sapphires and diamonds. The elegant form is created from wirework that gives the brooch a light feeling despite its generous size. Tiffany employed this gold wire construction to simulate feathers, animal fur and other natural textures. The gems are prong set above the gold background for added dimension. The diamonds are G color, VS1 clarity; the sapphires have medium-dark, strongly saturated blue violet-blue color...

An elegant pair of 18K yellow gold earrings with lapis lazuli inlay by Angela Cummings. The designer pioneered modern hardstone mosaic techniques when she was a lead designer at Tiffany & Co. She began working at Tiffany in 1967, but was not allowed to sign her own designs until 1974. These earrings are definitely her design, but are unsigned, indicating that they date from the period 1967-74. The earrings are marked “T&Co 18K”.

Origin: America, 1967-74. Size: 7/8” x 3/4"...

A 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, aquamarine, amethyst, citrine and garnet. Each piece of Sputnik jewelry has a unique appearance depending on the combination of gemstones used and how they are arranged relative to one another. This pair of earrings has brightly-colored stones in a very pleasing arrangement...

A classic 18K gold “Open Heart” in the large size by Tiffany & Co. Created by Elsa Peretti, this design became one of Tiffany’s most popular and identifiable pieces. This pendant is the second largest of the four sizes available. The back of the pendant is signed “Elsa Peretti “ and is fully hallmarked by Tiffany & Co. The pendant is presented with its original Tiffany 18" 18K gold chain. This piece currently retails for $2200.

• Origin: America, ca...

An exquisite mid-century modern 18K gold and diamond necklace by André Vassort for the Parisian jeweler O. J. Perrin...

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". App...

This fine pin measures 2” long. It displays 3 prong-set, scarab gems, budding from a leaf and stems. It is gold filled and marked BURT 1/20 12KT CASSELL. It is in excellent condition. Burt Cassell, a designer based in Rhode Island and New York City, made high quality jewelry during the 1950s through the mid 1960s. His gold filled designs, enhanced with semi-precious stones were mainly sold through jewelry stores and not department stores. An advertisement from 1961 describes his work as "The ...

pair of 18K yellow gold earclips by Barry Kieselstein-Cord resembling a spiraled seashell. The gold has the softly burnished texture typical of Kieselstein-Cord’s designs in the 1980s. The omega clips are original, but posts could easily be added. Each earring is signed.

Origin: America, ca. 1985. Condition: excellent, all original. Dimensions: 1-1/8” x 1/2". Weight: 13.6 grams.

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 color of the amethyst is deep purple and is nicely even throughout the stone. The gold surfaces are decorated with the fine florentined engraving typical of Marx’s pieces. The interior o...

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...

A colorful pair of 18K gold and gemstone earrings from the “Rainbow Collection” by H Stern. Created in the 1980’s, the collection was intended to show off the variety of colored gemstones available from Stern’s Brazilian mines and also the artistry of the company’s designers in the subtly graduated colors that reproduce the colors of the rainbow spectrum. The selection includes amethyst, several shades of citrine, peridot, and blue topaz. Each earring is marked “750” for 18K and be...

A striking pair of 18K yellow gold earrings accented with hardstone inlay by Angela Cummings for Tiffany & Co. Each slightly domed oval earring is set with polka-dots of carnelian, mother-of-pearl and onyx. Cummings pioneered the use of the mosaic technique in modern jewelry during her early years at Tiffany. These earrings were created in the early 1970s, before Tiffany began allowing Cummings to sign her designs with her own name. The backs are marked “Tiffany & Co. 750”.

Origin: Ame...

Superb Mikimoto 18K yellow gold and pearl brooch in the shape of a cello. The cello’s body is set with 25 fine AA pearls graduating from 3.8 to 5.2 millimeters, and the tailpiece is studded with three round brilliant-cut diamonds. The f-holes, fingerboard, pegs and scroll are worked in gold and are beautifully detailed. The pearls are of exceptional quality with light cream body color and rosé overtones. The luster is very bright and the pearls are well matched. The diamonds are SI1/2 clarity...

A superb modernist 18K yellow gold pendant set with a large bi-color tourmaline. Haroldo Burle Marx was particularly known for his bold use of very large gemstones, often fashioned by carving or tumbling rather than faceting. The color of this tourmaline shades from deep green to deep purplish-red. The gold mounting which slightly mimics the outline of the tourmaline is decorated with stippling and Florentine engraving. The back is is signed “Burle Marx” and is stamped “18K” and “...