This information indicates the weight of the stones on the jewelry and is expressed in carats. Edenly provides a certificate with all of its jewelry, indicating the weight and quality of the stones. For customized pieces, with a diamond of over 0.51 carats, a certificate from the International Gemological Institute (IGI), will be provided to you automatically. This is a “closed” certificate which has the diamond sealed in a polyester transparent box. An independent laboratory certificate (GIA or HRD) can also be provided for these items as a double warranty. But, for this, a written request from the laboratory is needed. In that case, it is a complementary certificate where the diamonds are delivered enclosed with the laser registration number on the girdle.