Details Gabriella Kiss 18k yellow gold & oval cabochon dark blue sapphire ring, size 7 1/2. The 4.78ct stone measures approximately 3/8″ x 5/16" & is set in Gabriella's signature scalloped bezel. - blue sapphire, 4.78ct - 18k yellow gold - size 7 1/2 Sizing This ring can be resized. Please allow 2 - 6 weeks. Inquire about sizing fee.