Yellow Tanzanite 3.25ct Solid 18K Yellow Gold Ring

Yellow Tanzanite (Zoisite) 3.25ct, 24th Wedding Anniversary Ring, December Birthstone, Dimensions of Tanzanite = 10.00 * 8.00 * 6.00 mm, Natural and Untreated, Oval Shape, Excellent Cut, Sourced from Merelani Tanzania, Doubly Refractive, Refractive Index = 1.69 - 1.70, Ring Weight = 5.20g, Gold Purity = 18K Solid Yellow Gold, 750 Gold Hallmark, Ring Size = 7,