A Certificate of Authenticity is included with every gemstone, diamond or pearl jewelry piece we ship. This certificate states: allé Fine Jewelry and its manufacturers certify that the diamonds(s), gemstone(s), or pearl(s) are genuine. With every gemstone, diamond or pearl jewelry item, $1,000.00 or over, allé Fine Jewelry includes an "independent" appraisal. This process can take an extra two days before the item is shipped.