Impressive Bombe design cocktail ring made of 18 karat (tested) yellow gold and featuring a 12.97-carat natural Ceylon oval yellow sapphire enhanced by round brilliant cut diamonds (F-G color, VS1 clarity, 1.36 carats total weight) and round faceted emeralds (2.30 carats total weight). The diamonds are set in white gold which accentuates their whiteness. The yellow sapphire comes with an American Gemological Laboratories Report stating that it is natural, of Ceylon (Sri Lanka) origin and not treated (see picture 3). The ring is size 5.5 and can be re-sized. Weight: 27.9 grams. Measurements: top 1″ x 7/8″ x 3/4″ (2.6 x 2.2 x 1.9 cm). Stamped with Andre Vassort workshop mark, French hallmark for 18 karat gold. Bold and chic, the ring is a great addition to your jewelry collection.