All diamondwish.com jewelry is shipped with a Certificate of Authenticity that certifies authenticity, quality and that the final product is as described. If not better. All our diamonds are 100% natural. Upon special request, a free appraisal will be provided for insurance purposes. The appraisal document states the approximate retail value including details about the diamond cut, color, clarity, and either carat weight for diamonds or dimensions of gemstones and explaning the craftsmanship of your jewlery purchase.