Ladies finger ring with rectangularly pale blue turquoise edging, seeming aquamarine, untestet, in the emerald cut from approximate 7, 0 x 5, 5 mm. 585 yellow gold, stamped. 2. Half 20th century ring size: Germany: 52; USA / Canada: 6; Great Britain: double-line cancel; France: 12. Ca. 2, 20 large