An Art Deco Diamond & Onyx Geometric Bow Pin

Platinum geometric bow pin featuring diamonds weighing approx. 3.00 ctw with an average color grade of G-H and an average clarity grade of VS, bead set with French cut black onyx channel set in design

Platinum Art Deco brooch with black onyx and diamond bow brooch, 2 in. L, 9 grams

Art Deco 18K white gold bar pin features an inlaid central onyx bow design accented with approximately .25ct Collette set old European cut diamond. Complemented on sides by small bead set single cut d

An Art-Deco black onyx bow brooch ca 1930's. 14k white gold double pin back and frame. Diamonds set in platinum weighing approximately three carats total weight including center marquise cut diamond.

DESCRIPTION: Platinum bow pin with black grosgrain ribbon edged with approximately .5 ctw of diamonds. MEASUREMENTS: 2" x 3/4". 4.9 dwt (7.5 gr). CONDITION: No defects noted.

Vintage Art Deco Gold & Silver Pin holding a pair of removable Clips formed as scrolls & flowers with diamonds and onyx & coral highlights. Total weight 33.61 grams. Width assembled on pin frame 2 1/4

A French Art Deco Platinum Diamond and Onyx Jabot Pin. Arrow terminals set in platinum with single cut diamonds and onyx. French Hallmarks. Approximate total weight. 7.3 grams. Dimensions: length: 3 5

JANESICH, FRENCH, ART DECO, DIAMOND AND ONYX JABOT PIN Containing triangular and calibre cut onyx and numerous rose cut diamonds. Mounted in platinum. 2 1/4 x 7/16 inches. Engraved: JANESICH 12872. St

ART DECO, DIAMOND AND ONYX BAR PIN Containing 10 single cut diamonds and 12 calibre cut onyx. Mounted in platinum and yellow gold. 2 1/2 inches long. Gross weight: 4.25 dwt.

Cartier: An Art Deco jade, diamond and onyx jabot pin, circa 1925 Each terminal set with a circular carved jade plaque, with old brilliant and single-cut diamond and cabochon onyx diamond detail, sign

Art Deco dreicer & Co platinum bow brooch set with approx. 0.66ctw in rose cut diamonds and onyx. Some onyx stones are chipped. Brooch is 53mm x 12mm. Marked: Dreicer & Co, tested Platinum. Weight - 7

This is an antique 14K white gold filigree bow brooch dating to the early 20th Century. The Art Deco brooch features an Old European cut diamond surrounded by single cut diamonds. The diamonds are SI

French Art Deco Onyx & Diamond Arrow Pin mounted in 18K white gold circa 1920's with twist lock opening, small illegible hallmarks to top and bottom parts. Total weight 9.7 grams. Length 2 3/4 inches

AN ART DECO ONYX AND DIAMOND JABOT PIN BROOCH the body terminated by drop shaped motifs set with black onyx cabochons within borders of old and rose cut diamonds, unmarked, 8.3cm, 7.3g.

Art Deco Tiffany & Co 14k gold and platinum jabot pin, adorned with lapis, onyx and diamonds. Each top is 10mm in diameter, entire pin is 76mm long. Marked Tiffany & Co. Weight - 4.6 grams.

A FRENCH ART DECO ONYX AND DIAMOND ARROW JABOT PIN BROOCH in platinum, designed as an arrow, set with polished onyx and rose cut diamonds, French maker's mark, French assay marks, 4.3cm, 2.2g.

DESCRIPTION: 14k gold and diamond inset Art Deco stick pin. 14k gold Etruscan style carved black onyx cameo stick pin. Marked: "14k" CIRCA: Early 20th Cent. ORIGIN: France DIMENSIONS: H: 65mm & H: 60m

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

Art Deco Approx. .30 Carat TW Old European Cut Diamond, Ten French Cut Sapphire and 18 Karat Yellow Gold Bow Pin. Diamonds H color, VS2 clarity. Sapphires with vivid color. Measures 1-1/4" H, 2-3/4" W

18 karat white gold diamond bow form brooch pin. 43 round diamonds total weight approximately 1.10 carats. H color VS2-SI1 clarity. One large marquis, diamond K-L color. VS2 clarity 1.7?1.8 carats. 9.

A FINE ART DECO CORAL, DIAMOND AND ONYX BROOCH in 14ct yellow gold, set with a sugarloaf cabochon coral against a pierced geometric ground, accented by old and single cut diamonds and polished onyx ba

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.

ART DECO STYLE ONYX, DIAMOND AND GOLD NECKLACE with a diamond shaped onyx pendant, with a conforming geometric chain of 14KT gold, onyx and diamond, inscribed JRS on pendant, stamped twice with 14KT,

Three Art Deco Era Bar Pins. Including 1 pin set with European cut diamonds and synthetic sapphire, 1 pin set with seven diamonds, and 1 bow form pin set with 13 enhancement diamonds. One with worn ma