Color Change Sapphire 1.30ct Solid 18K Gold Ring

Blue Umba Color Change Sapphire 1.30ct, Dimensions of Sapphire = 8.73 * 6.94 * 4.89mm, Solitaire Ring, September Birthstone, 5th and 45th Wedding Anniversary Ring, Natural and Untreated, Trillion Shape, Excellent Cut, Clarity = VS/VVS, Doubly Refractive, Refractive Index = 1.76 - 1.77, Color Change Sapphire is sourced from Tanzania, Gold Purity = 18K Solid Gold 750 Gold Hallmark, Ring Weight = 4.43g, Pronged Setting, Ring Size = 7.50,