2 Gold And Diamond Rings. 1) Marked 18KP (plumb) yellow gold band with a large prong set diamond approximately 0.8 carats and flanked by a pair of very deep blue triangular cut sapphires; approximate ring size 4-4.5. 2) Tested 18K white gold deco ring with pierced decorated gallery, stepped shoulder and fancy prongs holding a diamond approximately 0.8 carats, resized, approximate size 8.5-9. Total weight: 5.6g (0.20 oz).