About the brand: Precious gemstones luxuriously crafted. 14-karat white gold Faceted Round-cut Prong-set Diamond = approximately 0.48 ct. tw.; color = G-H; clarity = SI-I Approximately 16in long with 2in extender Lobster claw clasp closure 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.