As being a nonprofit research and schooling institute, we don't promote gems or jewellery, or signify those who promote them. GIA can be an independent, impartial entity that conducts research, grades diamonds and gems, and educates students, industry experts and the public on the quality of these supplies. Check with https://alexisefbwr.dm-blog.com/34751892/the-definitive-guide-to-diamond-certificate-gia