Platinum and Diamond Ring, Tiffany & Co. © Doyle New York Centering one asscher-cut diamond approximately 3.19 cts., flanked by 8 square-cut diamonds, the basket set with 12 single-cut diamonds, signed Tiffany & Co., circa 1920, approximately 2.2 dwt....

Scrimshaw Spider Cuff by Jessica Kagan Cushman Flaunting a perilously captivating spider, this genuine scrimshaw spider cuff suggests equal parts Pop and Victoriana with the elegant touch of a beautiful entomological rendering. Made of fossilized mammoth...

An antique diamond necklace, circa 1800 Designed as a series of alternating old-cut diamond flowerheads and entwined oval links suspending a detachable diamond-set Maltese cross pendant, with loop terminals for the attachment of a ribbon tie, in closed...

Emerald and diamond brooch, David Webb, 1970s Designed as a stylised Maltese cross, the cabochon pear-shaped emerald set within a border of pear-shaped diamonds, to the single- and brilliant-cut stone surrounds, mounted in platinum, signed David Webb....