This unusual brand new necklace is an 18 inch chain link necklace in genuine .925 sterling silver, with an additional 2 inch extension chain and a lobster clasp closure. Rhodium plated to prevent scratching and to ensure the silver retains that platinum luster, this adorable necklace features a cubic zirconia diamond simulants hashtag "#" symbol. The "#" symbol is approximately 8.5 millimeters.