For your protection, we ask that you send the gem back to us by USPS Priority Mail or UPS second day. Insure the gemstones returned for the full amount of purchase with delivery conformation for under $100. Signature conformation over $175.00. Return instructions will be provided with all purchases. Once we receive the gem and verify its authenticity, the charges to your credit card will be reversed. Send returns to Martin Dike, F.G. at 2501 Redwood Dr. Aptos, Ca 95003.