Cocktail Ring Modern 6.31 Oval Cut No Heat Sapphire & Diamonds in PlatinumThis deep royal blue sapphire is the center focal point of this beautiful modern sapphire and diamond ring. The center oval is a 6. 31 sapphire with no heat treatment. The sapphire is with claw style split prongs in platinum. The platinum diamond halo is set with thirty seven round brilliant diamonds bead she in the diamond bezel and down the shoulders of the ring. The side diamond weight is . 30 carats.