This is an authentic pre-owned Van Cleef & Arpels piece. It may be possible that there is some gentle wear. 18-karat yellow gold Faceted diamonds = approximately 0.80 ct. tw. Coral and Turquoise gemstones Available in size 4.75 only Ring can be re-sized by any professional jeweler; however if re-sized it will not be accepted for return 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. Our products are 100% genuine. In some cases we purchase merchandise from trusted independent suppliers and not directly from the brand owner. In all cases we stand by the authenticity of every product sold on our site.