The GUILD Pearl Grading Report consists of four sections: Certificate Information, Pearl Information, Appraisal Information, and Important Conclusions. For high-quality pearls, GUILD Gem Lab will provide grading results along with a supplementary certificate; those that do not meet the high-quality standard will not receive a supplementary certificate (pearls that have undergone dyeing, irradiation, or other treatments will not be graded). For pearls that have been treated or assembled, GUILD Gem Lab will issue a Pearl Identification Report without grading the examined sample.