JEWELRY. Platinum, Diamond and Onyx Brooch.

Sapphire Brooch or Bar Pin. Art Deco Cartier platinum bar pin or brooch comprised of a central onyx openwork frame with (2) sapphire cabochon accents, and (3) stacked bands of pave diamonds; flanked b

JEWELRY: Platinum diamond brooch by Frank Walter Lawrence, tested platinum mounting with 14K yellow gold pin stem, rectangular hand pierced design, center set with one marquise cut diamond, approximat

METAL: Platinum. MEASUREMENTS: Pendant is 38mm x 21mm. GEMSTONES: Onyx, Diamonds approx. 2.20ctw. TESTED: Plat. WEIGHT: 10.3 grams.Gemstones have not been graded for color and clarity ,and tested for

Art Deco dreicer & Co platinum bow brooch set with approx. 0.66ctw in rose cut diamonds and onyx. Some onyx stones are chipped. Brooch is 53mm x 12mm. Marked: Dreicer & Co, tested Platinum. Weight - 7

Platinum floral spray brooch comprised of (11) marquise cut diamonds, (1) pear-shaped diamond, (14) round cut diamonds, and (54) diamond baguettes (straight and tapered). Apparently unmarked. Total ap

Vintage circular platinum openwork brooch with central Old European cut diamond measuring approx. 4.0mm surrounded by single cut, round brilliant cut, and Old European cut diamonds. Total approx. weig

Platinum brooch displaying (3) panel of (30) round brilliant cut diamonds and (58) single cut diamonds. Apparently unmarked. Brooch weighs approx. 9.9 dwt (gross). From a Briarcliff, NY estate. Dimens

JEWELRY: Platinum Art Deco diamond and onyx bracelet, hinged bracelet tested platinum with 18K white gold clap tongue, tapered width: 5.7mm-7.4mm, total weight: 24.8 grams, set with a total of twenty

Art Deco platinum brooch displaying a central trio of (3) milgrain bezel set Old European cut diamonds measuring approx. 6.0mm, 4.5mm and 4.6mm. Diamonds are set within a platinum filigree frame displ

Beautiful French openwork platinum brooch set with 4 white pearls with pink overtones, and diamond accents throughout - in both Old European and rose cuts. Stamped with the French domestic platinum ma

Platinum diamond inlaid circular brooch with applied diamond inlaid bow. Apparently unmarked. Total approx. weight is 5.4 dwt (gross). From a Greenwich, CT estate. Dimensions: brooch measures approx.

Platinum spray form brooch inlaid throughout with single cut diamonds. Total approx. weight is 9.8 dwt (gross). From a Garden City, NY estate. Dimensions: brooch measures approx. 3.45" w x 1.20&q

* An Art Deco Platinum, Diamond, Onyx and Emerald Bar Brooch, French, containing 133 old European and round single cut diamonds weighing approximately 2.70 carats total, 36 calibre cut onyx, and eight

JEWELRY: Vintage platinum, onyx and diamond ring, tested platinum setting, filigree under gallery with scroll design on shoulders, bezel set onyx and diamond, center set with one rectangular, curved t

Ladies Watch Case. Total approx. diamond weight of 1 cttw, approx. color G, approx. clarity VVS. From an extensive Brooklyn, NY collection. Dimensions: .625" w x 1.25". Condition: All watches sold as

VK ITOO DAVID WEBB 18 karat Yellow Gold Platinum Diamond Emerald Brooch A gorgeous vintage David Webb 18 karat gold brooch, featuring emerald and diamond. Designed as a swirled branch, this vintage Da

Platinum double clip/brooch inlaid throughout with bands of single cut diamonds, (6) straight diamond baguettes, and (1) square cut diamond. Clip backings, and optional brooch backing are 14kt white g

or Brooch. Platinum floral spray pendant brooch inlaid throughout with round brilliant cut diamonds and tapered baguettes. Includes (3) round brilliant cut diamonds measuring approx. 3.0mm each, (18)

Topped 18kt Gold Ring. Central Old European cut diamond weighing approx. 0.33 cttw, approx. color of I, approx. clarity of VS. Total approx. weight of rose cut diamond accents is 0.25 cttw. Total appr

Wreath Brooch. With high quality diamonds weighing approx. 2 cttw. Total approx. weight is 4.3 dwt. From a Rockland County, NY location. Dimensions: 1.25" diameter.

Including two platinum and diamond brooches and one rose-cut and gold ring, total diamond weight approximately 1.60 cts., 16.7 gms gross, 3 pcs, est: $500/700

VINTAGE TIFFANY & CO. 3ct PLATINUM BROOCH PIN Brooch measures 1.85" H x 1.75" W Vintage Tiffany & Co. Platinum 3ct Diamond bow brooch with filigree design Center diamond apx 0.50ct Emerald cut Super c

Pendant. Large 18kt yellow gold handhammered pendant or brooch suspending an oval form platinum pendant with a central prong-set oval faceted colored gem, most surely a ruby, with a surround of surrou

An Art-Deco black onyx bow brooch ca 1930's. 14k white gold double pin back and frame. Diamonds set in platinum weighing approximately three carats total weight including center marquise cut diamond.