A classic vintage Mikimoto brooch featuring pearls set in 14K yellow gold. The swirled design includes ten pearls of superb quality, estimated at AA quality. The surfaces are smooth, the luster is bright and the body color is cream with rose overtones. The pearls range in size from 5.5 to 7.7 millimeters. The gold “leaves” are pierced to provide a sense of lightness despite the pin’s relatively generous size...

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 lovely older Cartier 18K yellow and white gold ring set with a .347-carat round brilliant diamond. The design, a wide tapered band, combines the two colors of gold in a very nice geometric design that perfectly complements the single diamond collet-set in the middle. The diamond is of fine quality, estimated at G color, VS clarity. The ring has a substantial appearance and could be worn by either a woman or man (though the size is a bit on the small side)...

An 18K tri-color gold ring in the inconic "Double C" motif by Cartier, with a stack of yellow, white and rose gold bands terminating in yellow gold C's at the opening. The interior is marked with Cartier's signature, the serial number "F95043", and the design date "1997".

Origin: France, ca. 1997

Condition: excellent

Finger Size: 56 European/8 US (can be opened slightly)

Dimensions: band, 1/4" wide; C's, 5/16" wide

Weight: 5.2 grams

A classic pearl and diamond ring by Mikimoto. A single 8.4 millimeter pearl is set at the center of the ring and is surrounded by small round brilliant-cut diamonds. The pearl is of very fine quality, estimated at AA. The body color is cream with rose overtones. The surface is smooth and lustrous. The diamonds are of equally fine quality. Typically, Mikimoto uses diamonds in the F-G color range with VVS clarity...

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...

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

This beautiful pin measures 1 1/2" x 1 1/4". The two interlocking circles with in fine filigree. The back is marked 1/20 12K G.F. WINARD. It is in excellent condition.

A classic 14K yellow gold "Tree of Life" pin by Mikimoto. This design is an enduring classic available only from the higher-level Mikimoto boutiques. The pin is set with twelve cultured pearls, ranging in size from 4.89 to 6.79 mm. The pearls are of exceptional AAA quality, with cream body color, rose overtones, a bright luster. The back is marked with Mikimoto's oyster shell signature.

• Japan, circa 2010
• Excellent condition
• 1 1/4" x 1 11/16"
• 8.2 grams

An elegant vintage 14K yellow gold and pearl brooch by Mikimoto. The stylized feather design is typical of Mikimoto’s vintage pieces and is particularly suitable for daytime wear. The pearls, ranging in size to 5.5 to 7.2 millimeters, have ivory body color with rose overtones and superb luster. The quality is estimated at A+1. The back of the pin is marked “K14” and bears the Mikimoto oyster shell hallmark.

Origin: Japan, ca. 1970. Condition: excellent, all original...

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 extremely rare 18K yellow gold Sputnik bracelet by H Stern. The domes are bezel-set with round amethysts, citrines, aquamarines, peridot, green tourmalines, pink tourmalines, and garnets. The Sputnik design was created in the 1950s to highlight the range of colored gemstones available from Stern's Brazilian mines. It later came to be called "Sputnik" for its resemblance to the spiky Soviet satellite launched in 1957. Each piece has a unique appearance depending on the specific colors of the s...

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. The back of the shank is fully stamped with French 18K gold hallmarks and the interior is signed "Pierre Cardin".

Jean Dinh Van...

This is a Vintage 14K bracelet in like new condition. It sat in a safe for decades. It's stamped 14K but because of the rich color it looks like it could be 18k. Has a second stamp we don't recognize (see image). There is an appraisal from 1997 when gold was $350 an oz., that gives it a value of $814. Weighs 18.5 grams and is 7 in length.

These lovely, 18K gold, Tiffany & Company earrings are designed by Paloma Picasso. They are the classic "Scribble" design and measure just under 1 1/2" x 5/8" (at their widest point). They are each marked, "1983 Tiffany & Co 18K" and signed "Paloma Picasso." The earring backs are also marked with a maker's mark and "18K." They are in brand new condition and come complete in the original Tiffany & Co., velvet box, which is inside the classic, blue Tiffany & Co. cardboard box.

A vintage Cartier “Trinity” pendant worked in 18K yellow, white and rose gold. Unlike the contemporary “Trinity” pendants that are essentially miniaturized versions of Cartier’s “Trinity” or rolling rings, this pendant is fashioned as a large yellow gold disc enhanced with tri-color gold “Trinity” rings. The gold has a soft matte finish. The pendant looks best hanging from a black silk cord, but can also be worn on a silk cord bracelet. Replacing the black silk with a leath...

An extremely fine pair of 18K yellow gold half-hoop earrings channel-set with princess cut diamonds and square cut blue sapphires. Like all of Wayne’s jewelry, the gemstones are of the very top quality. The diamonds are F color and VVS2 clarity. The sapphires are extra-fine quality, with strongly saturated pure blue color and eye-clean clarity. The earrings have the original posts with omega backs. Each earring is marked with the model number “4”, the serial number “188156” and �...

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.