Important Imperial Jade, Diamond, Platinum Brooch

Chinese jade platinum and 18kt white gold brooch with diamonds. Marked PLAT 18ct. Brooch measures 46mm length. Jade measures 28mm x 17mm. Total weight 4.5dwt.

Estate Lot of Platinum Jade & Diamond Art Deco Brooch & Ring. Oval Jadeite Flowered Brooch surrounded by platinum art deco motif with diamonds. The brooch measures W 2" x H 1". Art Deco Platinum Jade

Antique Art Deco platinum brooch centering oval carved jade 38m x 16mm, framed by diamonds approx. 0.48ctw. Brooch measures 43mm x 18mm. Tested platinum. Weight is 7.2grams.Gemstones have not been gra

9 oval jade ap. 11.1 x 7.2 mm. to 8.1 x 5.7 mm., 58 round and single-cut diamonds ap. 1.45 cts., signed Gump's, Made in HK, ap. 15 dwts.

Platinum Art Deco pendant brooch, with carved jade and rose cut diamonds. Brooch is 42mm x 25mm. Tested plat. Weight - 12 grams.

Signed Krementz art deco gemstone brooch. Features a platinum topped pin backed with 14k gold, and embellished with a pair of diamonds flanking an apple green jade measuring 15mm x 11mm. Total diamond

An Art Deco 18 Karat Yellow Gold, Platinum, Jade, Diamond and Seed Pearl Brooch, containing one pierced and carved jade bi measuring approximately 33.55 mm in diameter, six round single cut diamonds,

IMPORTANT SAPPHIRE AND DIAMOND DOUBLE CLIP BROOCH, in platinum. Of part wave design, set with 3 sections of blue sapphires totalling approx. 6.84 ct. Flanked with multi-cut diamonds totalling approx.

Platinum, Carved Jade and Diamond Brooch One rectangular carved jade ap. 33.0 x 19.0 x 3.0 mm., 6 transitional and 66 single-cut diamonds ap. 1.35 cts., c. 1920, ap. 8.8 dwts. gross. C

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

CARTIER, IMPORTANT ART-DECO DIAMOND, RUBY AND JADE FLORAL BROOCHPlatinum.Diamonds bright and lively.Jade and rubies generally well matched.Signed Cartier.W. 2.6 cm.7.8 grams.Fine brooch, high quality

Art deco brooch set with five Old European cut diamonds. Center approximately .20 carat and four approximately .03 carat each, .42 CTW. Clarity SI2, Color H-I. 1-7/8" x 5/8". 3.0 dwt. IMPORTANT: Befor

Tiffany & Co., Paloma Picasso Gold, Platinum, Black Jade, Rubellite and Diamond Spider Brooch 18 kt., one oval cabochon black jade ap. 13.6 x 6.6 x 5.0 mm., one oval rubellite, 26 round diamonds ap. .

ART-DECO JADE AND DIAMOND BROOCH, in 18 ct. gold and platinum. Set with a square carved green jade plaque to the center, with diamond accents to the sides. W. 5.3 cm. 4.1 grams.

Brooch with floral designIn 18 Karat yellow gold and platinum on yellow gold, set with brilliant and rose-cut diamonds. The five most important diamonds weighing from 0,15 ct to 0,40 ct.Hallmark: none

Circa 1925; Platinum Featuring three marquise cabochon green jade with the center gauged at 16.5mm x 6.2mm with a Mason Kay report dated July 27, 2022 stating natural jadeite jade - no indications of

AMAZING 6 VS, G-H COLOR ANTIQUE, MINE CUT DIAMONDS. 2 CARATS. PLATINUM TOP 40MM BY 18MM. MARKED "14K" WHITE GOLD WEIGHS 4.3 GRAMS. ALL EXCELLENT CONDITION. US SHIPPING $25.

PLATINUM & 18K GOLD CEYLON STAR SAPPHIRE DIAMOND & RUBY BROOCH: An important 18K yellow gold Russian brooch set with a large star sapphire cabochon surrounded by diamonds and knife-set rubies in an en

Jewelry. Includes a platinum mounted elongated jade pendant as a brooch accented by terminating panels of rose cut diamonds - with a 14kt gold post; and a pair of 14kt yellow gold mounted carved scara

A jade and platinum-topped fourteen karat gold broochdesigned as a carved jade in flower and bird motif, between transitional-cut diamond bars. 6.9 gross dwt; length: 2 in

Item/Description: Elegant Deco Retro era circle pin brooch fashioned as a wreath or ribbon from platinum and set with sparkly white round diamonds graduated in size. Approximately one half carat CTW.

Tiffany & Co. Schlumberger Apollo Pave Diamond Platinum Yellow Gold Pin Brooch Comes with C.O.A. ! Brand: Tiffany & Co. Collection: Schlumberger Style: Pin Brooch Condition: Pre-owned Diamond: 8 TCW M

round diamond, VS-1, L, with 40 round diamonds totaling another .50 carat in Art Deco platinum filigree setting, with appraisal of $27,550.00, currently size 8 1/2.

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