From Merelani, Tanzania New Era Gems is proud to offer you this piece of natural color facet rough selected from some of the finest quality Tanzanite we are able to aquire.  This piece of carefully selected gem material weighs 16.89 cts and measures 18x10x8 mm and is offered to you for your cutting pleasure! Tanzanite can be heated to obtain its unique blue/violet shade and New Era Gems is pleased to offer this service to its customers free of charge, for any questions in regards to this process feel free to give us a call at 1-800-752-2057.