PLATINUM AND DIAMOND ROUND CLUSTER BROOCH, 35g

Platinum Pearl and Diamond Cluster of Grapes Brooch Measuring (2.1" x 1.4") containing 29 - (4mm-6.5mm pearls) white with cream undertones and medium luster, accented with diamond rounds and baguettes

AN ART DECO SAPPHIRE AND DIAMOND BROOCH, CIRCA 1920 in platinum, set with a cluster of round cut diamonds, within a border of calibre cut sapphires, the diamonds all totalling 1.4-1.6 carats, stamped

A ruby, diamond, and platinum brooch designed as an articulated cluster of rubies, surmounted by straight baguette, round, and pear-shaped diamonds; estimated total diamond weight: 7.00 carats. Length

A diamond, emerald and platinum broochdesigned as a cluster of marquise-cut diamonds and circular-cut emeralds, among ribbons of round brilliant-cut diamond pavé; estimated total diamond weight:

Yellow gold 14 Kt and platinum diamond cluster brooch with 39 diamonds in concentric circle at center of pin. Acid tested. Weight 4.1 dwt. Condition: Excellent condition. L. 2-1/8" D 1/2". Copy and pa

Platinum Weight 12.4g Diamond Approx. 3ct Sapphire Approx. 0.60ct Round Cluster Ring Size 7 Measurements 0.79”x0.79”

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 -

Platinum and Diamond Brooch 10 round, 42 oval and 28 baguette diamonds ap. 7.15 cts., ap. 12 dwts. •

An early 20th century platinum and gold, turquoise and old-cut diamond cluster brooch.Turquoise estimated dimensions of 17.6 by 16 by 8.5mms.Estimated total diamond weight 3.90cts, G-I colour, SI1-P1

Gold, Platinum, Ruby and Diamond Brooch 14 round rubies ap. 1.40 cts., square and rectangular-cut rubies, old-mine and single cut diamonds ap. 1.85 cts., small rose-cut diamonds, several rectangular-c

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

An 18 Karat Yellow Gold, Platinum and Diamond Brooch, containing 15 round brilliant cut diamonds weighing approximately 0.75 carat total. Stamp: H 18K. 15.10 dwts.

AN EARLY 20TH CENTURY DIAMOND CLUSTER BAR BROOCH, a milgrain cluster of round-cut diamonds, to a split bar. Estimated total diamond weight 0.50ct, indistinctly marked '15CT', 1cm by 5.7cm, 3.6 grams

Round diamond millegrain set platinum brooch, central diamond ct. 0.60 circa, other smaller diamonds in all ct. 1.70 circa, g 15.80 circa, length cm 5.80 circa. IT Spilla in platino con diamanti roton

A Vintage 18k White Gold Diamond Pearl Cluster Brooch Pin featuring a cluster of (27) Pearl Beads drilled and mounted on Platinum along with Numerous transparent near-colorless Diamonds and Orange-yel

Tiffany & Co., Schlumberger Gold, Platinum and Diamond 'Ibex' Brooch 18 kt., round diamonds ap. 1.25 cts., one pear-shaped ruby eye, signed Tiffany & Co., Schlumberger, ap. 13.8 dwts. With signed box.

Stunning platinum and diamond lady's brooch with (23) round diamonds, (2) marquise, (52) baguette, (1) pear shape. 5.15 Total carats F-G color, VVS-SI clarity. Appraised for $10,500.00 in 2013. Weighs

Trabert & Hoeffer, Mauboussin 'Reflection' Gold, Platinum, Cabochon Ruby and Diamond Clip-Brooch 18 round cabochon rubies, 13 transitonal-cut diamonds ap. .90 ct., signed Trabert & Hoeffer, Mauboussin

OSCAR HEYMAN & BROTHERS, YELLOW GOLD, PLATINUM AND DIAMOND FOX BROOCH Containing 27 round brilliant cut diamonds weighing approximately 0.80 carat total and two ruby eyes. 1 inch x 1 1/4 inches. Stamp

Platinum, Sapphire, and Diamond Brooch featuring seven round cabochon sapphires and 15 full-cut diamonds weighing approx. 0.75 tcw.; 19.66 dwts.; lg. 7 in.

An 18 Karat Yellow Gold, Diamond and Ruby Floral Cluster Brooch, Montclair, containing four round brilliant cut diamonds weighing approximately 0.47 carat total and seven round mixed cut rubies measur

14KT YELLOW GOLD, PLATINUM AND DIAMOND ART DECO-DESIGN BROOCHNine round-cut diamonds approx. 0.55 ctw. Approx. 50.0 x 11.0mm.Approx. 3.75 total dwt.

Platinum and Diamond Bar Brooch Having fourteen round cut diamonds Condition: Good, light wear, missing center gemstone; unmarked but acid tested as platinum; gemstone(s) tested on the heat conductivi

A PLATINUM AND DIAMOND BROOCH Featuring round, marquise-shaped, tapered baguette and baguette diamonds weighing approximately 7.00 carats in a swirling spray design, with original fitted box, measures