IGI is the global authority in diamond, gemstone, and jewelry certification. Expert grading, education, and trusted evaluations. Verify Report

IGI operates 31 laboratories around the world grading finished jewelry, natural diamonds, lab-grown diamonds and gemstones, along with 18 schools of gemology graduating thousands of students annually.

igi 共同创造了现代激光刻字工艺。 使用非常精细和精确的激光束，可以将字母数字字符、品牌徽标甚至个性化信息刻在钻石的腰围或外圆周上。 使用激光在钻石腰部添加报告编号，可在放大镜下快速识别宝石，验证其所有宝石学细节。

IGI Diamond Reports accurately assess a diamond's cut, color, clarity and carat weight according to strict international standards.

Oct 31, 2023 · Designers and retailers even co-brand with IGI, placing their logo on the document, and can request an appraised replacement value for insurance purposes. Whether describing standard sapphires or exotic materials from bixbite to zoisite, a single ironclad document from IGI raises consumer confidence when buying jewelry and elevates trust in our ...

IGI assesses craftsmanship components for all diamonds – with cut grading and optional light performance reports for round brilliant cuts – and a cut grading option for fancy shaped diamonds. Round Brilliant Cut Diamonds

IGI co-created the modern laser inscription process. Using a very fine and precise laser beam, alphanumeric characters, a brand logo or even a personalized message can be inscribed on the girdle or outside circumference of a diamond.

IGI co-created the modern laser inscription process. Using a very fine and precise laser beam, alphanumeric characters, a brand logo or even a personalized message can be inscribed on the girdle or outside circumference of a diamond.

IGI co-created the modern laser inscription process. Using a very fine and precise laser beam, alphanumeric characters, a brand logo or even a personalized message can be inscribed on the girdle or outside circumference of a diamond.

IGI's diamond services include diamond screening, sorting, and more, providing transparency, protection & added value for buyers & sellers.