iStone Jewelry is committed to offer all kinds of natural loose gemstones from the whole world. All stones are 100% natural loose gemstones mined from earth, each gemstone has been strictly controlled and screened by us and will provide a certificate issued by a third-party authoritative laboratory, you have our assurance with every purchase.

Workiva, 2900 University Blvd, Ames, IA 50010, United States