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...

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...

Elegant signed Mikimoto brooch of 14K yellow gold with pearls. The pearls, ranging from 5 to 5.5mm are of the quality that only Mikimoto can produce. The body color is a bright white with silver overtones. The lustre is exceptional. The design is a sort of abstract flower basket design. The back is marked with Mikimoto's shell hallmark.

Origin: Japan, circa 1950s. Condition: excellent, all original. Size: 1-3/8" x 1-1/4". Weight: 7.0 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 pair of heavy 18K yellow gold earrings by Gucci. The earrings are in a triangular shape with gently rounded corners and are worked in an open basketweave pattern. The design incorporates both matte and polished surfaces to create a greater sense of depth. The earrings retain their original Omega clips, but the posts could easily be removed for wear as earclips. Each earring is marked 18K and is signed “Gucci”.

Origin: Italy, ca. 1995. Condition: excellent...

A magnificent 18K gold, sapphire, emerald and ruby dome ring by David Webb. The textured gold is accented with rows of ropework bands punctuated with collet-set cabochon gemstones. The rich, intense colors of the stones beautifully accent the intricate gold. The extra-wide shank keeps this heavy statement ring from turning on the finger. The interior is signed "Webb 18K."

Origin: America, ca. 1970. Condition: excellent. Dimensions: 15/16" wide, tapering to 5/8" at the back...

Beautiful Mikimoto 18K yellow gold and pearl brooch. Opposing swirls of gold surround a cluster of five Mikimoto pearls, ranging from 5 to 6 millimeters. The quality of the pearls is excellent (estimated at AA quality), with very high luster and a bright white body color and rosé overtones. The back is marked with Mikimoto’s hallmark and “750” for 18K gold.

Origin: Japan, ca. 1990. Condition: excellent, all original. Size: 1-27/32” x 13/16”. Weight: 8.5 grams.

A 14K black coral and pearl Maui Divers Brooch or pin circa 1960s. This vintage genuine black coral 1-3/4" x 7/8" pin or brooch with a genuine cultured pearl has 14k yellow gold leaves It has a safety clasp and what appears to be an M with a wave through it (hard to see), and was most likely produce by Maui Divers of Hawaii (est. 1959). It tests as 14k gold and the 4 mm. pearl has a beautiful smooth creamy lustre. Maui Divers jewellery is high quality jewelry and is quite expensive new...

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...

A vintage 18K yellow gold turtle brooch set with rubies by Cartier. The turtle’s shell is formed as interwoven wide ribbons of textured gold, the intersections prong-set with round brilliant-cut rubies. The eyes are also set with small rubies. Parts of the gold have a Florentine finish while others are smooth, creating very pleasing contrast. The rubies are of very fine quality, with strongly saturated color and eye-clean clarity. The reverse side of the pin is worked in a trellis pattern...

A classic pearl and diamond ring by Mikimoto...

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. Stamped with...

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. 2000
• Very good condition; light wear to the shank
• Finger Size: 5

A striking 1950s extra-large bracelet charm by Van Cleef & Arpels. The charm is a fully-functional roulette wheel studded along the edge with collet-set round cut sapphires and emeralds. Under crystal dome, a tiny ruby bead serves as the marble. The moveable handle spins the dial, causing the ruby to skip along until if falls into one of the depressions on the wheel. Instead of numbers, however, the wheel is engraved “Je t’aime” (I love you…)/”Un Peu” (…a little)/”Beacoup” ...

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

Fabulous 1960's David Webb seven-strand emerald bead torsade necklace finished with an 18K yellow gold clasp featuring a cushion-shaped rock crystal plaque centering a oval cabochon emerald flanked at the top and bottom with round brilliant-cut diamonds. This design is so evocative of the classic chunky Webb style, and the workmanship is of the finest quality. The diamonds are F color, VVS2 clarity. The 305 carats of fully-faceted emerald beads are fully faceted and are beautifully matched to...

A stunning 18K gold "Double Cable" cuff bracelet with two stations set with round brilliant diamonds (G/VS1) and French cut rubies. This is a very rare model from Yurman. We have seen it only once before, set with emeralds. The back of each station is signed "D Yurman/18K" and the endcaps are marked "D Yurman 750."

• Origin: America, ca. 1990
• Condition: excellent
• Dimensions: width, 9/16"; width, 1/2" at stations, 12/32" along cables
• Weight: 39.5 grams
• Approxi...

An exquisite mid-century modern 18K gold and diamond necklace by André Vassort for the Parisian jeweler O. J. Perrin. The necklace comprises 47 butterfly-shaped graduated links, each separately hinged so they lie perfectly flat around the neck. The links are worked in the heavily textured style favored by Vassort. The center 21 links are each studded with a diamond so delicately set that it appears to float over its link. The diamonds are graded as E color and VVS1 clarity. The clasp is stamped...