Submit a Stone

GHI provides comprehensive gemological reports and services for loose white diamonds and white diamond jewelry. To submit an item to our lab, please follow these steps.

  1. Open a Customer Account prior to shipping or delivering your first order to the lab. Be sure to include your account number in all orders.
  2. Complete and include a Submission Form.
  3. Securely pack, insure, and send your item(s) to GHI via a trusted shipping service or hand-deliver your item(s) via a pre-authorized account agent.

Note: GHI will contact you when preliminary results are available, to discuss report options. Please reply to all lab messages immediately, so that we can complete your order as quickly as possible.