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An Art deco natural pearl and diamond brooch. The openwork navette shaped panel…

An Art deco natural pearl and diamond brooch. The openwork navette shaped panel with central natural pearl highlight, to the old brilliant-cut diamond-set surround, with stylised curling ribbon detail, circa

Art Deco sapphire and diamond double clip brooch by Chaumet, Paris, c.1925

Chaumet ~ Art Deco sapphire and diamond double clip brooch Paris,

Art Decó Etruscan Revival Chrysoprase, Onyx, and Sterling Silver Brooch with Trombone Clasp (c.1935) France

Art Decó Etruscan Revival Chrysoprase, Onyx, and Sterling Silver Brooch with Trombone Clasp France

Best Diamond Bracelets  : Art Deco Platinum Diamond and Sapphire Brooch Cartier. The openwork tapered ov

Best Diamond Bracelets : Art Deco Platinum Diamond and Sapphire Brooch Cartier. The openwork tapered ov

Art Deco Platinum, Emerald, and Diamond Brooch, set with an emerald-cut emerald measuring approx. 8.20 x 6.10 x 4.30 mm, further set with baguette-, old European-, single-, and fancy-cut diamonds, approx. total diamond wt. 3.00 cts., fancy-cut emerald accents, millegrain details, lg. 2 1/8 in.

Diamond Brooches Art Deco Platinum, Emerald, and Diamond Brooch, set with an emerald-cut emerald measuring approx.

An Art Deco onyx and beauty bling jewelry fashion

An Art Deco onyx and gem-set pendant watch, by Cartier With circular cream dial, blued steel hands, Roman numerals within a pearl border, onyx and diamond geometric cylindrical case to the openwork diamond and gem-set palmette motif and diamond barrel-sh

OPAL AND DIAMOND CLIP, France, ca. 1925. Platinum. Decorative, geometrically open-worked clip brooch, the centre set with 1 oval black opal of ca. 8.00 ct and set throughout with 107 single-cut diamonds weighing ca. 2.40 ct. Clip in white gold   - by Koller Auctions

OPAL AND DIAMOND CLIP, France, ca. Decorative, geometrically open-worked clip brooch, the centre set with 1 oval black opal of ca. ct and set throughout with 107 single-cut diamonds weighing ca. Clip in white gold - by Koller Auctions

Late Art Deco Black Opal Diamond and Ruby Brooch

A late art deco opal, diamond and ruby brooch, circa centering an oval-shaped black opal, measuring approximately x within an openwork surround of single and rose-cut diamonds accentuated by four square-cut rubies; mounted in platinum; width: 1 Z