About the brand: Elegant diamonds. Stunning gemstones.; .925 sterling silver; Pave-set created white sapphire gemstones = approximately 0.23 ct. tw.; Freshwater pearls measure 8mm; Earrings drop approximately 1in; Friction 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.