Wishlist Product W.A. Bolin 1960s 18k white gold and diamond ‘zig-zag / chevron’ bracelet. Edwardian enamel and diamond necklace, circa 1910. Art Deco Diamond Platinum Tank Ring 1980s Bulgari 18 karat gold blue topaz and Iolite doppio ring 1970s french 18k gold "rope" and pearl necklace.