Diamond certificates (aka grading stories) are issued by impartial laboratories next a rigorous, protected technique of diamond grading. During this part We're going to provide info on by far the most acknowledged gemological institutes operating in The usa and, sometimes, worldwide. As this announcement describes, AGS Labs merged with GIA https://angelo2p89u.blogofoto.com/65843151/a-simple-key-for-diamond-certificate-gia-unveiled