Sterling Silver Blue Topaz Ring With Two Faux Accent Diamonds. This ring is a U.S. size 8 and is stamped 925 sterling silver and was also made in China. The center blue stone has tested as topaz on my Presidium Gem Tester 2 and the two accent stones both test as Glass. These are brilliant cut in design. I do accept fair offers so please feel free to leave one and thank you for shopping with me!