The criteria used by the gemology labratories performing diamond certification are the 4 C's: cut, colour, carat and clarity - Read about the 4C's via the links below.

Certification is a safeguard for the consumer, however, opinion on an individual diamond can vary from laboratory to laboratory and certification will increase the cost of a diamond as there is a laboratory charge to have a diamond certified.

Any questions with regard to certified diamonds, please don't hesitate to contact us directly:

Email: enquiries@diamonds-specialist.co.uk

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