This is an authentic, pre-loved piece. It's possible that there may be some gentle wear. About the brand: High-end jewelry steeped in opulence. 18-karat white gold Diamond = approximately 1.94 ct. tw. Sapphire gemstones = approximately 15.20 ct. tw. Earrings drop approximately 1.25in Omega back closure Please note: For earring pairs, ct. tw. refers to the total carat weight of all diamonds and/or gemstones for both earrings combined. 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.