This is an authentic, pre-loved Van Cleef & Arpels piece. It's possible that there may be some gentle wear. 18-karat White Gold Gemstone(s): Mother Of Pearl Earrings measure approximately 0.63in Omega Back 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. 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.