About the brand: Elegant and empowering fine jewelry. 14-karat white gold Round-cut Prong-set Diamond = approximately 0.15 ct. tw.; color = C23 Gemstone(s): Sapphire = approximately 0.54 ct. tw. Ring cannot be re-sized 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.