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...

Vintage 18K yellow gold post-back earrings in the "Scribble" design by Paloma Picasso for Tiffany & Co. The design is sometimes called "Graffiti" or "Squiggle." The earrings were made in various sizes, with this pair being the most delicate and wearable. The backs are dated 1983 and are marked by Tiffany and Picasso.

• Origin: America, ca. 1983
• Excellent condition
• Dimensions: 5/8" x 1-7/16"
• Weight: 4.9 grams

An unusual vintage 14K gold equestrian keychain by Tiffany & Co. The chain has a fob on either end, one in the form of a horseshoe and the other in the form of a fully three-dimensions horse head. The head is nicely detailed and sparkles with a pair of bright ruby eyes. The rubies, though small, have very fine bright color. The back of the horseshoe is marked "Tiffany & Co. 14K."

Keys are added by holding the chain against one side of the horseshoe and slipping on the key...

A classic 14K yellow gold “Tree of Life” pin by Mikimoto. This design is an enduring classic available only from the higher-end Mikimoto boutiques. The pin is set with twelve cultured pearls, ranging in size from 4.01 to 5.18mm. The pearls are of exceptional AA quality, with cream body color and pronounced rose overtones. The luster is very bright and the surfaces are nearly blemish-free. The back is marked 14K and has Mikimoto’s oyster shell signature...

A classic 14K yellow gold “Tree of Life” pin by Mikimoto. This design is an enduring classic available only from the higher-end Mikimoto boutiques. The pin is set with twelve cultured pearls, ranging in size from 3.99 to 5.42mm. The pearls are of exceptional AA quality, with cream body color and pronounced rose overtones. The luster is very bright and the surfaces are nearly blemish-free. The back is marked 14K and has Mikimoto’s oyster shell signature...

An unusual 18K yellow gold pendant in the Sputnik design by H Stern. Most examples of Sputnik jewelry are set with multi-colored gemstones, but occasionally a piece turns up with a single color—in the case amethyst. The design was created in the 1950s to highlight the colored gemstones available from the Stern mines in Brazil. It later earned the nickname “Sputnik” for its resemblance to the spike Soviet satellite launched in 1957. Tested and guaranteed 18K.

Origin: Brazil, ca. 1955...

A colorful 18K gold pendant from H Stern’s “Rainbow Collection,” featuring rectangular garnet, topaz, citrine, peridot, green tourmaline, aquamarine, and amethyst to represent the color spectrum of visible light. The stones are contained within a simple gold border. The reverse is stamped with Stern’s star mark. Tested and guaranteed 18K.

• Origin: Brazil, ca...

A delightful vintage 14K yellow gold disc charm or pendant by Tiffany & Co. The center features an intricately cast "Tree of Life" bedecked with gemstone flowers. Starting with the diamond and spiraling outward in a counterclockwise direction, the first letter of each gemstone’s name—Diamond, Emerald, Amethyst, Ruby, Emerald, Sapphire and Topaz—spells “DEAREST”. The tree is enclosed in an open twist border, in turn enclosed in a broad “pleated” border...

A very fine, heavy 18K yellow gold bracelet in the “Signature” or “Signature X” pattern by Tiffany & Co. This is a classic design that hasn’t been in production for quite some time. Each link is fully articulated so the bracelet lies nicely on the wrist. The clasp is marked “T & Co. 750”. Comparable bracelets at Tiffany currently retail in the $8,000 range.

Origin: America, ca. 1995. Condition: excellent. Size: 7-1/8” long; 5/16” wide. Weight: 29.1 grams.

A fine modernist 18K yellow gold ring by Burle Marx set with an intricately carved bi-color watermelon tourmaline 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 colors of the tourmaline are nicely contrasting an dhighly saturated. The gold surfaces are decorated with the fine florentined engraving typical of Marx's pieces...

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 “...

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...

A beautiful pair of matte-finished 18K yellow gold earrings from Judith Ripka’s high-end collection. Each oval cushion-shaped earring is highlighted with a pair of pave-set diamond hearts flanked by rows of beading and rope motifs. The diamonds are G/H color and VS1 clarity. The backs of the earrings have hooks so that gemstone pendants can be added—perhaps pearl drops or even larger diamond or colored stone solitaires. The backs retain the original posts and omega clips. Each earring i...

A stunning pair of 18K yellow gold earrings in the "Heliocoidal" pattern by lauded designed Michael Good. The earrings are constructed in the anticlastic raising technique in with the piece is formed from a sheet of gold and then twisted along all three dimensions to create an organic shape that Good refers to as "molten energy." Each piece is created entirely by hand and does not employ any machine made parts such as earwires or clasps. Older examples of Good's jewelry is difficult to find. ...

A fun 18K yellow gold multi-gem H Stern “Sputnik” charm or pendant. Stern was the world’s leading dealer in colored gemstones and created this line of jewelry in the late 1950s to showcase the wonderful array of colored gemstones mined in Brazil, where the company was headquartered . Amethysts, aquamarines, citrines, garnets and green and pink tourmalines are collet-set above the gold sphere. The unusual design was considered very modernistic and dubbed “Sputnik” because of its perc...

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. Sputnik jewelry was create...

An 18K yellow gold buckle ring enhanced with enamel in Gucci's trademark Kelly green. The simplicity of the design is classic Gucci. The interior of the shank is signed "Gucci 18" Italy".

Origin: Italy, ca. 1970. Dimensions: shank, 3/16" wide. Finger Size: 6-1/2. Weight: 3.4 grams.

14K yellow gold screwback earrings (stamped 14K Tiffany & Co on both screwback pieces) with 4-5mm pearls. The diameter of the earring is 18mm, total weight of both earrings together is 8.1 grams.