About the brand: Italian traditions crafted in contemporary designs. 18-karat white gold Round-cut Prong-set Diamond = approximately 0.02 ct. tw.; color = G; clarity = VVS It is customary to treat most gemstones to achieve enhanced color and durability. Some of these treatments may not be permanent, and may require special care. Please note: In product titles ct. tw. refers to the total carat weight of all diamonds and/or gemstones combined.