Certification & Authentication

A diamond certificate is issued following an unbiased and professional examination to authenticate a diamond's attributes. The carat weight, colour and clarity are all validated, together with the diamond's exact measurements. Cut grades are also included for Round Brilliant cuts. Certificates are essential in determining or testifying a diamond's value. Diamonds sold through Seventy Seven Diamonds have been graded by GIA, AGS, HRD, IGI, EGL (Internationl or USA). It is generally accepted by diamond industry professionals that the Gemological Institute of America (GIA) sets the standard when it comes to diamond grading. At least three-quarters of the 200,000 diamonds listed on Seventy Seven Diamonds have been graded by the GIA.

The gemological labs issue the certificate, objectively irrespective of the diamond’s market value.

For quality Diamond and authenticity:

Ensure that the grading certificate issued is by a reputed gemologist or gemological lab. Some labs offer online services, where you can check different criteria. You can also ask the retailer for the origin of the diamond.

Reputed Labs are:
GIA Gemological Institute of America It is a non-profit organization established in 1931 with headquarters in Carlsbad, California and offices in many countries.
IGI International Gemological Institute It grades the diamonds and gems. It has headquarters in New York and other offices across US.
EGL-US European Gemological Laboratory USA It is an independently owned lab founded in 1986 with headquarters in New York.
AGS American Gem Society It is situated in Las Vegas, Nevada and founded in 1978.
HRD HRD The private foundation formerly known as the Hoge Raad voor Diamant (HRD).