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What are GIA Certified Diamonds?

What are GIA Certified Diamonds?

Buying diamond jewellery is one of the biggest online purchases you can make, how on earth do you trust an online retailer with your hard earned cash?

The Answer - Ensure you buy a Diamond Certified by GIA.

Who or What is The GIA?

The Gemological Institute of America is a non-profit independent institute dedicated to research and education in the field of gemmology and the jewellery arts. When it was founded in 1931, GIA's mission was to protect all buyers and sellers of gemstones by setting and maintaining the standards used to evaluate gemstone quality. By 1953 the GIA had developed its own International Diamond Grading System.

What is a GIA Certificate?

A GIA certificate is a document, sometimes known as a diamond grading report, dossier, or diamond analysis document that contains a full scientific and unbiased assessment of your diamond’s 4Cs. GIA tests every diamond submitted to establish its authenticity as a diamond and whether it’s been subjected to treatments. GIA reports provide a full description of the diamond, including colour, weight, measurements, and cutting style, and disclose any known treatments

The GIA Certificate clearly sets out the Diamonds attributes in a way that makes it easy to compare and choose!

A GIA Diamond Dossier

At Quality Diamonds we consider the Diamond Certificate to be the 5th C, as important to the value of your diamonds as Colour, Cut, Clarity and Carat Weight. It's so important to us that we've created a guide to help you understand your GIA Certificate

Are all of our Diamonds GIA Certified?

Not always! Though all diamonds we offer are always independently certified, to ensure fairness to our customers. There are other global companies that certify diamonds these include: IGI, HRD, AGS and EGL. 

We recommend GIA when and where we can. This is because they are globally known to be the most reliable as they have the most strict and consistent grading policies: making them more accurate compared to others. Read more on this at our Differences in Diamond Grading Guide.


As well as this, small diamonds are always non-certified!

Why aren’t Small Diamonds Certified?

It is not cost-effective to get small diamonds Certified. Though they are mostly split up into three types of quality: D/E VS, F/G VS and H/I SI.


Our Advice…

Unless you’re very experienced in buying diamonds and feel confident evaluating the quality of a diamond yourself, buy certified. That way, you know the diamond you’re getting is exactly the same quality that you’re paying for.


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