18K DIAMOND & BLACK ONYX PENDANT WITH CHAIN: 18K Italian made necklace is in the style of Erte and may be Erte. Marked with a maker's mark, 100 DEP, 1651AL, 750. 78 brilliant cut diamonds dot the onyx and the bale and form the body of the woman and the hound. Fine work and onyx help to further define the forms. Work on the back grille is impeccable. Approx 50-60 years old. Weight approx 52.55 grams. 16'' chain. Pendant measures 1.25'' x 2''. Est. $7000/10000**