The EGI Diamond Certificate provides a reliable and accurate documentation of a
diamond’s identity and grade based on the internationally recognized diamond grading system.
Using state-of-the-art equipment, each diamond is analyzed by several gemologists in order to provide the most
accurate description of the diamond’s quality and characteristics.
The carat, color, clarity and cut – commonly known as the 4 C’s of each diamond are clearly stated on each
Additional grading characteristics such as the finish, girdle, culet and fluorescence
are also detailed on the certificate.
A diagram of the diamond displaying any inclusions is also included on
The EGI Jewelry certificate is used to document jewelry pieces and identify
the characteristics of the precious stones featured in each piece.
Each EGI Jewelry certificate features a
description of the jewelry piece followed by a statement of the characteristics and grading of the precious
stones found in the piece.
A statement listing the quantity of gemstones featured in the piece as well as a grading report of the
gemstone’s weight, shape, color, clarity, cut, proportions and measurements are featured in the EGI Jewelry
In addition, the identification, weight and content of any precious metals found in the piece
are described on the certificate.
As a further way to identify the jewelry piece, the EGI Jewelry certificate
features an enlarged color photograph of the item. Upon request, the International Gemological Laboratory can
easily convert an EGI Jewelry Certificate into an appraisal certificate.
Colored Gemstone Report
EGI Laboratories are equipped with the most technologically advanced equipment available for the use in the
identification and authentication of colored gemstones. EGI Laboratories are equipped with immersion cells,
micrometers, spectroscopes, polariscopic, refractometers, specific gravity liquids, binocular microscopes
Each EGI Colored Gemstone Certificate clearly states whether the stone is natural or synthetic. The certificate identifies
the variety of the gemstone, its shape, carat weight, cut, color quality, measurements, transparency factor and major optical
characteristics. If the stone has undergone any treatment, this information will be listed on the certificate as well.
Upon request, the origin of the gemstone may be determined.