Every loose diamond sold by MDC has been analyzed and graded by one of the following gem labs.

• The Gemological Institute of America (GIA)
• The American Gem Society Laboratories (AGS).
• The European Gemological laboratory (EGL)
• The International Gemological Institution (IGI)
• The Empire Gemological Services (EGS)

These laboratories are among the most respected laboratories in the diamond industry, and are known for their consistency and unbiased diamond grading systems. Diamonds that are accompanied by these grading reports are the most highly valued in the industry.

In addition to being graded by either the GIA or the AGS, all MDC Signature Collection diamonds are certified by EGS. This additional certification provides a second independent and authoritative analysis of your diamond. EGS also verifies that your diamond meets all of the demanding quality requirements of the MDC Signature Collection.

• GIA Diamond Grading Report
• GIA Diamond Dossier®
• AGS Diamond Quality Document
• EGS Certificate of Diamond Authenticity and Appraisal

If you are interested in a diamond and a certificate is not available for viewing on the site, simply contact a diamond and jewelry consultant at service@mdcdiamonds.com or 1-866-239-4315.

Many of our diamonds are laser inscribed with the certificate number on the girdle of the diamond, for your protection and peace of mind.

The process of using a micro-laser beam to etch a microscopic inscription onto the girdle of a diamond.

This number is only visible under magnification. All of our diamonds are shipped with their own original certificates and you can always be certain that the diamond you have is the same one described on the certificate with its matching unique number.

If a diamond is not laser inscribed you can request to have the certificate number to be inscirbed on the girdle of the diamond by contacting a diamond and jewelry consultant at service@mdcdiamonds.com or 1-866-239-4315.