Once you’ve chosen your diamond and given time and consideration to its cut, colour, clarity and carat, how can you be sure the diamond you’re getting really is of the standard you believe it to be.

One way to guarantee its value is to receive an independent Gemmological Laboratory Diamond Certificate. This certificate ensures that the characteristics contained in it, match your diamond and have been determined by experienced diamond graders using recognised gemmological instruments and expertise.
Those minute characteristics, invisible to the naked eye, which we learned about in Clarity, have a major bearing on value. Your independent certificate guarantees your diamond’s grading.

The certificate is a diamond grading report, describing objective factors, both qualitative and quantitative, and an almost infinite combination of all of the variables, based on the Diamond Ring/cut,colour,clarity,carat/
measurements, and physical properties, which define each stone: Diamond Ring/cut-colour-clarity-carat/
Diamond Colour for colourless diamonds
Diamond Stone vs. Diamond Carat,
Diamond Clarity
and its measurements: diameter, height or thickness, minimum and maximum diameter with the girdle. Any defect of the stone structure must be noted on the certificate, example: possible trace of laser drilling or rough trace. The Kimberly Process and famous diamonds certificate number on the diamond’s girdle should match the number on the certificate.

The main gemological laboratories in the world, and most known are: Certified Diamond

Examples of Certificates