4.18ctw UNHEATED Yellow and Blue Sapphire and...

Updated August 24, 2026

0.54ctw Diamond Platinum Ring (GIA CERTIFIED). One polished, stamped, and tested platinum ring marked Oscar Friedman. The ring is mounted with: 2 genuine unheated sapphire center stones weighing approximately 4.18 carats, and 49 genuine round diamonds weighing approximately 0.54 carats. This item weighs 6.6 grams, condition is new, excellent workmanship. #MAIN GEMSTONES# Species: Natural Corundum; Variety: Natural Sapphire; Shape: Octagonal; Cutting Style: Modified Brilliant Cut; Quantity: 2 Sapphires; Measurements: 7.31 x 6.49 x 4.46mm, 7.43 x 624 x 5.00mm; Total Weight: 4.18 carats; Color: Yellow / Blue; Transparency: Transparent; 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: 45 Diamonds; Measurements: 1.3mm; Total Weight: 0.54 carats; Clarity Grade: VS1-VS2; Color Grade: F-G; Refractive Index: 2.417; Hardness: 10 #TOTAL SAPPHIRE WEIGHT: 4.18 cts; TOTAL DIAMOND WEIGHT: 0.54 cts; WEIGHT OF ITEM: 6.6 grams; METAL: Platinum #Size: 7

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