A three-diamond and platinum navette brooch

A collection of three platinum and diamond broochesincluding one designed as a butterfly set with round brilliant-cut diamonds, estimated total diamond weight: 2.50 carats; one designed as a flexible

With three millegrained bezel-set OEC diamonds, approx. .90 ct., 1.50 cts. or .90 ct., centering graduated lines of OEC diamonds, approx. 5.0 cts. TW, in a geometric design. Ca. 1930. Stamped Wise & S

DIAMOND AND PLATINUM BROOCH 2 CTS APPROX. H 1 1/2" W 1 1/4":30 full cut round diamonds in surround "F" color, v. s. 1 clarity. Three marquis shape diamonds, seven baguettes, eight full cut round diamo

Lady's Leaf Platinum & Diamond Brooch 1.25''. Art deco fur clip has three round brilliant and rose cut champagne colored diamonds at center of approx. .65ctw. Leaves are set with approx. (85) mixed cu

A vertical arrangement of three diamonds, approx. .15 ct. each, mounted in pierced and engraved platinum with millegrained edges, ca. 1930. Size 6 1/2. 3.6 dwt.

Vintage Platinum Diamond Brooch, Spectrometer tested platinum, with estimated approx. 1.35 carats diamonds both prong set and bead set also three baguette cut diamonds, pin mechanism works properly, 1

10 karat cupid brooch with 14 Karat Wings weighs 8.24 grams, along with a stick pin set with three Diamonds [H/SI] of approximately .18 carats; 3.0 grams

A Platinum and Diamond Brooch, Set with three diamonds, each approx. 10pt. Also having two diamonds, each approx. 5pt. Total weight: 3.9 dwt.

Art Deco Style Platinum, Diamond, and Black Onyx Ringthe platinum navette shaped mount with milgrain detailing set to the center with three marquise cut diamonds weighing approximately .70 total carat

A Collection of Edwardian 14 Karat Gold and Gemstone Bar Brooches, consisting of a platinum topped gold navette shaped brooch containing one round and two single cut diamonds, a platinum topped gold b

Diamond and Emerald Brooch platinum, the large brooch mounted with three European-cut diamonds weighing approximately 1.72 carats in total, approximate color E-G and clarity SI1-SI2, and round brillia

Antique cut diamond plate brooch in platinum. Brooch made of platinum set with rose cut diamonds in openwork motifs and three illusion claw centers with three antique cushion cut diamonds of approx. 0

One Art Deco period lady's round platinum diamond & sapphire brooch. The brooch measures approx. 1.50" round and features a total of twenty-three (23), bead set old mind cut diamonds measuring 1.70 -

An Art Deco Platinum, Diamond and Sapphire Brooch, containing three square step cut diamonds weighing approximately 1.00 carat total, four baguette diamonds weighing approximately 0.80 carat total, 40

Three brooches 19th-early 20th centuryComprising two 19th Century brooches, one shell cameo and metal brooch, one garnet and gold dome brooches, and one platinum, diamond and synthetic sapphire bar p

An Art Deco Platinum and Diamond Brooch A platinum Art Deco brooch centering three old European-cut diamonds, surrounded by approximately sixty-two smaller diamonds, near colorless (G - H), with SI cl

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

Art deco 18k yellow Gold and Platinum on top, featuring three Old mine Diamonds weighing Approx. 0.60 carats. Along with Rose cut Diamonds and natural blue Sapphires weighing Approx. 1.00 carats. Broo

A platinum and diamond pendant/brooch designed as a heart shape convertible pendant/brooch, set with twenty-one round brilliant-cut diamonds, three marquise cut diamonds, and twelve baguette-cut diamo

set with 15 round rubies weighing approximately 1.90 carats, three round brilliant diamonds [I/VS1] weighing approximately .44 carats, eight marquise diamonds [J/VS2] weighing approximately .74 carats

An Art Deco diamond and platinum ringthe pierced and millegrained navette form, featuring three principal old European-cut diamonds, each weighing approximately 0.20, 0.55, or 0.20 carat, further acce

A PLATINUM, EMERALD AND DIAMOND BROOCH Featuring two shield step-cut emeralds in a circular spray design with three dangling strands set with round, marquise-shaped, square and baguette diamonds weigh

Three Ladies 14k Yellow Gold Pins and a Brooch. Comprising a 14k and platinum diamond bow, and pin set with an amethyst, a stick pin set with a smokey quartz, and a nautical glass brooch with anchor m

PLATINUM, GOLD, DIAMOND AND SAPPHIRE BROOCH Melee centering three bezel-set diamonds, the largest approx. 3.2mm x 3.0mm. Length 2.25”. Approx. 6.46 total dwt.