A diamond that has been certified has been assessed by respected and trained gemmologists. The gemmologists will assess the diamond based on many important quality factors including; colour, clarity, carat weight and cut. The certificate is issued in the form of a report and includes the stone’s characteristics that have been measured and evaluated.

There are many laboratories that grade diamonds and provide certification. To list a few; International Gemmological Institute (IGI), Hoge Raad voor Diamant (HRD),  American Gemmological Society (AGS), Independent Diamond Report Centre (IDRC) and Gemmological Institute of America (GIA).

Many diamond suppliers and jewellers hold a preference to diamonds certified by the Gemmological Institute of America (GIA) as they are known within the industry to have the strictest standards and highest expectations of a diamond.

GIA created the first and now globally acknowledged ruling for describing diamonds: Colour, Clarity, Cut and Carat Weight. The 4Cs of Diamond Quality is the universal method for assessing the quality of any diamond. By creating the Diamond 4Cs the GIA ensured two things: diamond quality could be communicated in a universal language and diamond customers would have complete clarity in what they were purchasing.

As creator of the Diamond 4Cs and the International Diamond Grading System, GIA is not only a global authority, but the world’s trusted source for unbiased assessment. The GIA is a non-profit organisation that grades diamonds independently with no profit related bias.

The advantages of buying a diamond with a GIA certificate include:

  • Having the peace of mind in what you are buying. Every important factor you need to know about the diamond is described in the certificate.
  • When a diamond is accompanied by a certificate you will have the added reassurance that your diamond has not been fracture-filled (a method of improving the diamond quality artificially). The GIA refuse to certify these diamonds.
  • Along with treated diamonds, there are also man-made synthetic diamond in the market. Again, GIA will also disclose this information and refuse to certify.
  • Certification is now considered the 5th C of the 4Cs due to the value it adds to your purchase. Purchasing a GIA certified diamond will provide you with much confidence and value.

Here at Holly Robinson Jewellery I am proud to source the perfect diamond for you based on your preferred diamond characteristics and price range. With my GIA training, I will narrow your search to a suitable selection and by inspection chose you a diamond with right scientific characteristics and romance for you both.

Diamonds at Holly Robinson Jewellery are all certified and (you have guessed it!) my preferred laboratory would be the Gemmological Institute of America. Upon purchasing your Holly Robinson Diamond, you will also receive your diamond certificate as well as access to the GIA website to check your report online.