By Leading Independent Laboratories


PDC Diamonds are graded to the same specifications as mined diamonds and accompanied by Diamond Grading Reports from leading independent laboratories such as the International Gemological Institute (IGI) and GCAL.

These certificates are identical to mined diamond certificates including grading of the 4C’s along with full disclosure of the Lab-Grown Diamonds origin.

Lab-Grown Diamonds are certified by leading independent gemological labs just as mined diamonds are certified. The unique report number of each certified diamond is laser-inscribed on the girdle of the stone

A Lab-Grown Diamond features the same optical and physical properties as a natural diamond including its chemical composition, refractive index and 4C’s. The only difference is its point of origin as one is grown above ground while the other is extracted from the ground.