About the brand: Elegant and empowering fine jewelry. 18-karat two-tone gold Faceted Cushion Round-cut Prong-set Diamond = approximately 0.99 ct. tw.; color = FLY YELLOW H-I; clarity = SI1 SI1-SI2 Pendant drops approximately 1in Approximately 18in long 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.