Wishlist Product Vintage Carl Bucherer link necklace in two color 18 karat gold Edwardian enamel and diamond necklace, circa 1910. Victorian No heat Sapphire Snake Necklace, circa 1890s. Important 1970s Bulgari Monete, Tetradrachm, 18k Gold and Diamond Necklace. W.A. Bolin 1960s 18k white gold and diamond ‘zig-zag / chevron’ bracelet.