3.37 Carat Genuine Tanzanite and White Topaz .925 Sterling Silver RingSpecifications: Birthstone Month: December Finish: Rhodium Plated Gemstone Wt: 3. 37 ctw Gender: Women Gross Wt: 4. 9 Height: 6. 86 MM Length: 19. 56 MM Metal: . 925 Sterling Silver Metal Stamp: 925 Primary Stone Color: Violet Stone 1: Tanzanite Stone 1 Carat: 0. 47 ctw Stone 1 Creation Method: Natural Stone 1 Quantity: 1 Stone 1 Shape: Round Stone 1 Size: 5. 00mm Stone 1 Treatment Method: Heat Treated Stone 2: Tanzanite Stone 2 Carat: 2. 72 ctw Stone