An 18 Karat Yellow Gold, Purple Spinel and Diamond Ring, containing one oval mixed cut purple spinel measuring approximately 13.90 x 9.58 x 5.97 mm and 18 round brilliant cut diamonds weighing approximately 0.90 carat total, openwork gallery and wirework accented shank.Stamp: SM 18K.Accompanied by an American Gemological Laboratories sapphire identification and origin certificate number CS 1072862, dated January 20, 2016, stating Mineral Type: Natural Spinel, Color Description: Purple, Enhancement: None, Clarity Enhancement: None. 5.50 dwts.