All our a ESG ダイヤモンド™ are certified by independent diamond grading laboratories such as International Gemological Institution (IGI) & Gem Certification and Assurance Lab (GCAL). The certificates issued are identical to mined diamond certificates with grading of the 4C’s- Cut, Color, Clarity & Carat. ESG ダイヤモンド™ are certified stones and bare a “LAB GROWN” laser inscription on the girdle for full disclosure.
鑑定書の読み方
IGIラボグロウンダイヤモンドレポート
The IGI Diamond Report includes the gemstone’s description (natural or laboratory-grown) as well as its shape, cutting style, measurements and 4Cs assessment: Carat Weight, Color, Clarity and Cut. Diamond reports may also include a graphic representation of the diamond's proportions and a diagram of its clarity characteristics.
