This elegant necklace is crafted from .925 sterling silver and features a vibrant lab-grown ruby pendant for a timeless look. Created Ruby = approximately 1.10 ct. tw. Spring ring clasp closure Material: .925 sterling silver Imported Pendant drops approximately 0.2in Approximately 18in long 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.