About the brand: Beautifully-crafted fine jewelry. .925 sterling silver Black Mother Of Pearl. Clear Quartz Over Mother Of Pearl & Onyx gemstones = approximately 22.00 ct. tw. Earrings drop approximately 37.5mm Post backs 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.