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...

Amazing fabulous very big matched pair of clear Lucite tube shaped bangles with studded with two kinds of very brilliant stones: colorless and aurora borealis finished. Late 1970s, possibly French or Italian. The Lucite is bright and clear with no yellowing. Each is 7/8 inch wide, 5/8 inch thick, and 2 5/8 inch inside diameter.

Lovely vintage gold and genuine salmon coral clip earrings by the San Francisco jeweler Gump's, known for its fine coral, jade, and pearl jewelry. Circa 1975. Marked 14K and GUMP'S. Together they weigh 9 grams. The color is a classic salmon coral, warmer than the photos depict. The earring backs are ready to be converted to pierced with the addition of a post.

Each is 7/8 inch long. Excellent condition...

A very nice 14K yellow gold 5mm cable twist bracelet with domed ends set with pearls and rubies from the “Cable Classics” collection by David Yurman. The 4.8mm pearls are beautifully accented with rows of channel-set round rubies. This design is one of the earlier pieces from the “Cable Classics” collection, and is no longer in production. The original retail price was $2,450. The open cuff is flexible and can be spread to fit nearly any wrist...

A vintage pair of Tiffany & Co. 18K yellow gold earrings in a classic ribbed shrimp design. The earrings have posts and omega backs. Marked "T&C 750".

Origin: America, ca 1980

Condition: excellent

Dimensions: 1" long; 3/8" maximum width

Weight: 14.9 grams

A classic 18K gold “Open Heart” pendant in the large size by Tiffany & Co. Created by Elsa Peretti, this design has become one of Tiffany’s most popular and identifiable designs. This pendant is the second largest of the four available sizes. The pendant is suspended from its original Tiffany chain. The back of the pendant is signed “Elsa Peretti” and both the pendant and chain are fully hallmarked by Tiffany & Co. This piece is currently available at Tiffany & Co...

This mid-century kinetic design necklace is the work of Erika Hult de Corral.

It's a stunning signature piece which features an extra-long length of 28 1/2". Erika Hult de Corral studied at the Parsons School of Design in Paris, later on working with both Sigi Pineda and Enrique Ledesma before opening her own shop.

Moon crater balls and long tubes combine on the sides, with a centerpiece which has free swinging pendulums of varying lengths...

This beautiful, sterling silver bracelet measures 7 1/2" long. Each link features a dark, multifaceted stone with iridescent colors. The stones are bezel set. The V-spring box clasp is marked on each piece: the V-spring has the Mexican Assay mark with a 2 inside the spread eagle. The box part is marked with words in a circle; but all I can make out is PLATA 925.

This vintage Navajo cuff bracelet measures 1 1/4", tapering to 3/4". The central turquoise stone has an irregular shape and is sawtooth bezel-set. The back is signed John Chavez (in script) and 1975. The sides have nice stampwork.

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...

Less-is-more is definitely the way Carmen Beckmann chose to go with this vintage Mexican sterling silver and amethyst ring. Set in a disk adorned with overlay and oxidation, it brings to mind a perfectly round stone as it touches the water causing it to ripple. Easy to wear whatever the occasion and a beautiful example of Mexican modernist jewelry. Currently a sz 6 US (easily resizable by your jeweler) the ring has a face that is 7/8” in diameter and it weighs 8.3 grams...

This mid-century bracelet was produced by RTA. I've had a few RTA pieces over the years, all based on Antonio Pineda designs, all of exceptional quality and craftsmanship. This design is known as "birdcage", and it is absolutely stunning. It has everything going for it. Large and quite substantial, it weighs 126.5 grams. Wears beautifully and feels luxurious on the wrist. Measures a closed, wearable length of 7". Width is 1 9/16"...

I was always in love with beaded necklaces but as I grow older I appreciate their elegant comfort even more. Whether worn alone or combined with similar pieces, with stones or all-silver, they can be counted on to save the day whatever the occasion. This specific design by Carmen Beckmann is one of my absolute favorites - I have one in my jewelry box and I will never let go. Made up of two sizes of beads, one plain, the other embellished with ornate wire-work, it is most usually found in choker ...

A very attractive pair of vintage 18K yellow gold star earrings by Tiffany & Co. The stars are slightly pulled out of shape, so the design has a sense of movement, and the legs are slightly faceted for a little extra shine. The earrings have Omega backs and the original posts, which could be removed for wear as clips. Each earring is signed "Tiffany & Co.", is marked "750" for 18K gold, and is dated 1983.

Origin: America, 1983. Condition: excellent, all original. Size: 13/16" x 7/8". Wei...

This is a gorgeous cuff produced by Los Castillo, with deeply chased swirling lines, oxidized recesses, and a beautiful patina. Signed and hallmarked Los Castillo Taxco, with the eagle assay 15 and design # 110. Weight is 58.9 grams. Edge to edge measures 5 5/8", with an additional opening/gap of 1 3/8". This will fit a larger wrist, but can be gently adjusted to size by a professional jeweler. In excellent vintage condition. Circa 1950's.

A stunning Tiffany & Co. ring by Jean Schlumberger, one of the great jewelry designers of the 20th century. He was Tiffany’s lead designer in the 1960s and was charged with creating nearly all of the company’s most exclusive pieces. His designs typically relied on naturalistic motifs. Here, two leaves are worked in platinum and studded with round brilliant-cut diamonds. The stems of the leaves are worked in 18K yellow gold and meld into the double shank that continues the organic motif. ...

A stylish sterling silver pendant and chain by Elsa Peretti for Tiffany & Co. The bottle can be worn either empty as a sculptural piece of jewelry or as a vase with a single, delicate flower. Both the pendant and chain are signed Peretti and are fully hallmarked by Tiffany. This piece is the middle of the three available sizes and currently retails for $550.

Size: pendant, 1-3/4” x 1-1/2”; chain, 25” long. Weight: 18.6 grams.

A vintage 18K yellow gold and diamond ring in the "Tiffany Signature Series" created by Tiffany & Co. in 1992. The classic design is the form of three reeded bands studded with round brilliant-cut diamonds to create a sort of basketweave pattern. The diamonds are F/VVS1. The interior of the shank is marked "1992 Tiffany & Co. 750".

Tiffany Signature Series pieces were made with and without diamonds. Princess Diana purchased the earrings and bracelet, both without diamonds, in 1993.

Origi...