Platinum Green Sapphire & Diamond Ring One polished, stamped, and tested platinum ring marked Sheffield & Sons. The ring is mounted with: 1 genuine GIA certified unheated sapphire center stone weighing 1.22 carats, and 152 genuine round diamonds weighing approximately 0.88 carats. This item weighs 7.8 grams, condition is new, excellent workmanship. *MAIN GEMSTONE* GIA Report No.: 5221267694 Species: Natural Corundum Variety: Natural Sapphire Shape: Octagonal Cutting Style: Step Cut Measurements: 7.18 x 5.45 x 3.13mm Weight: 1.22 carats Color: Yellowish Green Transparency: Transparent Treatment: None Refractive Index: 1.762 - 1.770 DR Birefringence: 0.008 - 0.010 Hardness: 9 *ADJACENT GEMSTONES ON RING* Identity: Natural Diamond Shape: Round Cutting Style: Brilliant Cut Quantity: 152 Diamonds Measurements: 1.1mm Total Weight: 0.88 carats Clarity Grade: VS2 - SI1 Color Grade: G - H Refractive Index: 2.418 Hardness: 10 Size: 6.75