Vintage Amethyst Cocktail Ring Eye catching is an understatement for this impressively large amethyst cocktail ring. We consider that this ring was made around 1970 as a bespoke item. The ring measures 30 x 22mm and the lozenge shaped amethyst has a perfect balance of purple colouration and brightness. The setting and diamond border of the ring is entirley handmade to showcase the stone. Amethyst: 23 carats. Diamond total ( x24) 1.20 carats. Metal tests as 18k yellow and white gold.