The Importance of Certification
The value of a precious stone is determined by its gemological makeup, natural rarity
and finished quality.
Diamonds and gemstones of similar appearance can have important differences in value.
Even experts need powerful analytic tools to detect synthetics, treatments and enhancement
processes. An IGI Certificate clearly discloses
the details of any item it accompanies, providing confidence for both buyer and
With more locations around the globe than any other laboratory, IGI is the world's
most trusted name for the expert and impartial grading of diamonds, gemstones and
jewelry. Gemstones should only change hands when accompanied by a certificate attesting
to quality. Regardless of location or marketplace, an authentic
IGI Laboratory Report is the common language of trust and confidence
in the gemological world, and should be considered an essential part of any transaction.
We take this responsibility very seriously.