About the brand: Elegant diamonds. Stunning gemstones. Two-tone .925 sterling silver Green Amethyst And White Topaz gemstones = approximately 4.73 ct. tw. Signature brown diamond on inside of piece to empower women to discover their inner strength, power, and beauty = approximately 0.02 ct. 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.