The Proof

Diamond Certification

Every diamond we sell, natural or lab-grown, is independently graded by GIA or IGI before it reaches you - no exceptions.

What Certification Means

A diamond certificate (or grading report) is issued by an independent laboratory - not by us - after the diamond is examined under controlled conditions. It records the diamond's exact characteristics and is tied to a unique report number, so its authenticity can be verified by anyone, at any time.

GIA & IGI

GIA

The Gemological Institute of America is the standard-setting body for diamond grading worldwide, known for the strictest and most consistent grading criteria. We use GIA primarily for natural diamonds.

IGI

The International Gemological Institute is the world's largest independent lab for lab-grown diamonds, with reports that clearly identify a stone's origin alongside its grade.

The 4Cs, Graded On Every Report

Cut

How well it's faceted for brilliance

Colour

Absence of colour, graded D to Z

Clarity

Inclusions visible under magnification

Carat

Weight, precise to the hundredth

Natural & Lab-Grown, Both Certified

We deal in both natural and lab-grown diamonds. Chemically and optically, a lab-grown diamond is a real diamond - the only difference is its origin, which is stated clearly on every report we provide.

Natural Diamonds

Formed over billions of years beneath the earth's surface. Each one is certified for authenticity and grade.

Lab-Grown Diamonds

Grown under controlled conditions that replicate nature, then cut, polished and certified to the same standard.

Verifying Your Certificate

Every report we issue carries a unique number that can be looked up directly on the GIA or IGI website to confirm the diamond's grade and origin.

  1. Locate the report number on your certificate
  2. Visit the GIA or IGI report-verification page
  3. Enter the number to confirm it matches your diamond

Questions About a Certificate?

Speak with our gemologists directly, or write to us at care@candordiamonds.com.

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