Brooch in platinum and diamonds

An adorable Art Deco brooch of a winged insect, set with diamonds, rubies and a solitaire pearl, in platinum, France, circa 1920's - 1940's. This delightful piece has been expertly crafted out of plat

LADIES PLATINUM DIAMOND CROWN BROOCH Ladies platinum diamond crown Brooch. Set with (44) single cut accent diamonds and a single pear shaped diamond of approximately .50 ct I color SI1 clarity. Weight

Vintage Platinum & diamond brooch, c. 1950, set with a cluster of pear-shaped and marquise-cut diamonds, H-J color, VS-SI clarity, est. 10.0 carats, 2.5"l, approx. 18 dwt., illegibly stamped 869(?) Pr

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

Platinum Diamond Brooch, oval shape measuring approximately 2 x 1 ¼ inches; pave set with 158 round full and single cut diamonds, approximate total carat weight is 5.75 by formula;the diamonds averag

Platinum brooch, set with center approx. 8.24ct yellow sapphire (measures 12.7 x 11.89 x 6.2mm), surrounded with approx. 0.74ctw in diamonds. Brooch measures 28mm x 27mm. Tested plat. Weight - 10.3 gr

Art Deco French Platinum Diamond Brooch Weighing 21.9 grams Set with app. 9.50 Ct. of Diamonds E-G Color, VVS-VS Clarity 2 inches in length

$42852 Spectacular Edwardian antique diamond and platinum brooch with 6.68 carats of diamonds! 17.1 grams of platinum. Circa 1910. You won't find another like it anywhere. Complete with appraisal of $

Art Deco Platinum Diamond Brooch Weighing 15.1 grams Set with 135 Diamonds weighing app. 9.00 Ct. E-G Color, VS1-SI2 Clarity 2.25 x 1 inches

This fabulous platinum & diamond brooch is stunning! The piece features a total of one hundred eighteen (118), prong set, round brilliant and round single cut diamonds and thirty-seven (37), channel s

Tiffany and Co 18K Gold and Platinum brooch. The brooch is made in the shape of a flower and encrusted with diamonds. Marked with standard Gold and Platinum hallmarks, Tiffany and Co copyright, on the

Vintage fancy and large floral and bow brooch. 139 high quality diamonds with a approx. weight of 9.60ct set in a hand fabricated platinum setting. Unmarked, tested for platinum. approx 1.5" X 2" with

RBC, OEC and single cut diamonds approximately 8 cts TW. Approximately I-K, SI. 11.1 dwts.

11 pear cut diamonds, approx. 2.00ctw., G-H, VS2-SI1, 70 assorted cut diamonds, straight baguettes, tapered baguettes, lozenge, trapezoids, approx. 4.15ctw., G-H, VS2-SI1, length 2-1/8 in. at longest

346-661 Two Carat Platinum and Diamond Brooch. Art Deco Setting. 2.5" long. World Class item. Would make a stunning Pendant. Good stones, incredible Mine Cut Diamonds.

Turquoise, Diamond, Platinum Brooch The brooch features oval-shaped turquoise cabochons ranging in size from 55.00 x 34.00 mm to 80.00 x 25.00 mm, enhanced by full-cut diamonds weighing a total of app

Victorian 18K & Platinum Diamond Brooch Weighing 9.1 grams Set with 49 Old European-cut Diamonds weighing app. 2.60 Ct. F-H Color, VVS-VS Clarity 2 inches in length

Art Deco platinum brooch/pin decorated with mixed cut diamonds. Center stone- Old European cut diamond-approx. 0.79ct (VS2/I), two side stones-Old European cut diamonds-approx. 0.55ctw (SI1-SI2/I-J),

PLATINUM & DIAMOND BROOCH, 6.50CTW set with 58 marquise and round diamonds approx. 6.50 carats (in our opinion: I color, VS2-SI1clarity, however not guaranteed), largest diamond 0.34 carats, tests pla

METAL: Platinum. GEMSTONES: Diamonds approx. 3.00ctw. MEASUREMENTS: Brooch is 42mm x 33mm. has a hook on the bottom to attach a drop. TESTED: Plat. WEIGHT: 12.5 grams.Gemstones have not been graded fo

stamped 'Tiffany & Co. / PT950'; containing 42 full and single-cut diamonds [G-I/VS] weighing approximately 1.00 carats total; approximately 12.00 x 40.60 mm; 5.1 grams

METAL: Platinum. GEMSTONES: Old mine cut diamonds total approx. 1.55ctw. Center diamond approx. 0.65ct. MEASUREMENTS: Brooch is 51mm x 19mm. TESTED: Plat. WEIGHT: 10.1 grams.Gemstones have not been gr

center round cut synthetic blue sapphire approx. 7.6mm, approx. 156 old European cut diamonds estimated total weight 3.50cts., H-J, VS to SI, tested platinum, 13/16 x 2-7/8 in., 11.3 gramsÿ - Provena

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