One polished, stamped, and tested platinum ring marked Oscar Friedman. The ring is mounted with: 1 genuine GIA certified tanzanite center stone weighing 12.46 carats, and 40 genuine round diamonds weighing approximately 1.47 carats. This item weighs 13.3 grams, condition is new, excellent workmanship. #MAIN GEMSTONE# GIA Report No.: 2223628683 Species: Zoisite Variety: Tanzanite Shape: Oval Cutting Style: Brilliant Cut Crown, Modified Brilliant Cut Pavilion Measurements: 16.18 x 10.42 x 9.15mm Weight: 12.46 carats Color: Violet Transparency: Transparent Refractive Index: 1.691 - 1.700 DR Birefringence: 0.008 - 0.013 Hardness: 6.5 - 7 #ADJACENT GEMSTONES ON RING# Identity: Natural Diamond Shape: Round Cutting Style: Brilliant Cut Quantity: 40 Diamonds Measurements: 2.0 - 2.2mm Total Weight: 1.47 carats Clarity Grade: VS2-SI1 Color Grade: G-H Refractive Index: 2.417 Hardness: 10 TANZANITE WEIGHT: 12.46 ct TOTAL DIAMOND WEIGHT: 1.47 cts. WEIGHT OF ITEM: 13.3 grams METAL: Platinum Size: 6 3/4