The earliest GIA class supplies from the Richard T. Liddicoat Gemological Library and data Centre that mention the 4Cs are from 1949. Diamond color, clarity, Reduce and carat bodyweight are collectively termed the “4Cs” – the aspects that, when combined, determine a diamond’s quality and finally decide its price. Prior https://cabochongemstones31593.scrappingwiki.com/3900678/a_review_of_how_to_check_gem_quality