What are the best gemstone certifications?

Whether you’re looking at an outstanding sapphire or a perfect diamond, they almost always have certifications that prove their origin, grade or even rarity.

There is a list of the most-equipped, experienced and respected laboratories in the world. Their gemstone certifications are definitely trustworthy.

GIA

The Gemological Institute of America is the most respected and renowned organization dedicated to research and education in the field of gemology.

AGL

The American Gemological Laboratory is one of the most famous and reliable laboratories in America.

Gubelin

It is the oldest gemological laboratory from Switzerland, one of the foremost authorities in colored gemstone authentication.

SSEF

The Swiss Gemological Institute is another leading centre in Europe that issues reports for diamonds, colored stones and pearls.

GRS

The Gem Research Swisslab is a private independent gemological research laboratory, specializing in the determination of origin and authenticity reports for colored gems.

HRD

The Hoge Raad voor Diamant is based in Antwerp. It is the leading European authority dedicated to grading of diamonds.

IGI

The International Gemological Institute is the largest international laboratory for diamond and colored gemstone certification.

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