Platinum and Diamond Brooch, Mounted by Cartier, the cushion-cut diamond weighing 1.58 cts., further

Platinum and Diamond Brooch centering a cushion old mine-cut diamond weighing approx. 3.00 cts. surmounted in a bow and starburst design set with old mine-cut diamonds; approx. 6.00 tcw.; 13.89 dwts.;

CARTIER, DIAMOND BROOCH Containing eight pear shaped diamonds and 108 baguette cut diamonds weighing approximately 11.00-12.00 carats total. Mounted in platinum. 1 1/2 x 1 1/2 inches. Stamp: CARTIER 1

PLATINUM AND DIAMOND BROOCH Composed of round cut diamonds, weighing approximately 5.00 cts., Length 2 1/2 inches, Weight 9.3 dwt.

Diamond Brooch platinum, the brooch mounted with round brilliant-cut diamonds weighing approximately 1.43 carats in total, and accented with a round-cut treated ruby for the eye, weighing approximatel

Raymond C. Yard Diamond Penguin Brooch platinum, the brooch mounted with round brilliant-cut diamonds weighing approximately 2.50 carats in total, accented with black enamel, stamped "YARD". size 1-1/

Platinum and Diamond Flower Brooch 2 old European and old-mine cut diamonds weighing 2.13 cts. 11 round diamonds ap. 3.00 cts., 27 round and 25 baguette diamonds ap. 7.35 cts., 53 round and single-cut

A SPECTACULAR DIAMOND RING, BY TAFFIN Containing one cushion brilliant cut diamond weighing 5.89 carats and numerous single cut diamonds. Mounted in platinum. Ring size 5 3/4. Engraved: TAFFIN TF 2866

Belle Epoque diamond and platinum brooch centered by a bezel set cushion old mine cut diamond weighing approximately 2.00 carats and two European cut diamonds 0.95 carats each, further accented by old

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

Seagull Brooch. Tiffany & Co. platinum seagull form brooch inlaid throughout with (42) round full cut diamond weighing approx. 1.05 cts. Approx. color F-G, approx. clarity VS1-VS2. Accompanied by

Marcus & Co. Edwardian Diamond Crescent Brooch platinum/18k yellow gold, the brooch mounted with old European-cut and old single-cut diamonds weighing approximately 2.50 carats in total, signed "M & C

Platinum and Diamond Ring One cushion modified brilliant diamond weighing 2.01 cts., 2 triangular-cut diamonds ap. .90 ct., with personal engraving. Size 6. With GIA report no. 1226551174 stating F co

David Webb Rock Crystal and Diamond Brooch/Pendant 18k yellow gold/platinum, the brooch mounted with rock crystals beads on a gold frame, accented by round brilliant-cut diamonds weighing approximatel

Gem-Set Dress Clips platinum, the dress clips mounted in a frame, allowing them to be worn together as a brooch, mounted with round brilliant-cut and baguette-cut diamonds weighing approximately 2.59

CARTIER, YELLOW GOLD AND DIAMOND BIRD BROOCH Consisting of a textured yellow gold bird with platinum accents containing 16 round brilliant cut diamonds weighing approximately 0.80 carat total and one

DIAMOND BROOCH Containing 32 baguette and numerous round brilliant cut diamonds weighing approximately 9.00-10.00 carats total. Mounted in platinum. 2 3/4 x 1 1/2 inches. Gross weight: 12.25 dwt.

DIAMOND BROOCH Containing 101 round brilliant cut diamonds and 13 baguette cut diamonds weighing approximately 8.50 carats total. Mounted in platinum. 2 x 1 1/4 inches. 11.20 dwt.

Tourmaline, Diamond, Platinum Pendant Necklace. Featuring one fancy cushion-cut tourmaline weighing approximately 10.21 cts., accented by round brilliant-cut diamonds weighing a total of approximately

EDWARDIAN, DIAMOND BROOCH Containing 63 old mine cut diamonds weighing approximately 2.20 carats total. Mounted in platinum. 2 inches x 3/4 inch. Scratchmark: 3948. 4.90 dwt. Property from The Collect

Art Deco Platinum and Gem-Set Brooch, Cartierfinely designed in a flower basket motif, basket set with transitional cut, marquise cut, single cut round, and straight baguette cut diamonds weighing app

Antique Gold, Platinum, Emerald, Demantoid Garnet and Diamond Lizard Brooch 63 old-mine cut diamonds ap. 1.55 cts., 13 cushion-shaped and round demantoid garnets, 2 cushion-shaped ruby eyes, c. 1910,

ANTIQUE, DIAMOND BOW BROOCH Containing numerous old European cut diamonds weighing approximately 4.50 carats total. Mounted in platinum-topped gold. 2 3/4 x 2 inches.Pin stamp: 18K. Gross weight: 10.8

TIFFANY & CO., DIAMOND SWIRL BROOCH Containing 29 round brilliant cut diamonds weighing approximately 1.75 carats total. Mounted in platinum. 3/4 inch wide. Stamp: 1991 TIFFANY & CO. PT 950. 3.70 dwt.

DIAMOND BOW BROOCH Containing 43 round brilliant cut diamonds weighing approximately 2.15 carats total. Mounted in platinum. 1 5/8 x 1 3/8 inches. Stamp: PLAT (maker's mark). Gross weight: 6.80 d