The four C's: Colour, Clarity, Cut and Carat Weight are the main factors to note if you
want to buy or sell a diamond. There is a 5th: Charm - But that's only if the other 4 are
taken into account!

Here's a brief overview of what's what.

The less colour in it, the more expensive it is, although personal preference should not put you off buying a gem with a tiny edge of colour in it. Please note that the colours here do NOT reflect the actual shade of the diamond graded.

Blemishes: scratches and nicks on the surface of the diamond.

Inclusions: Any internal features of the diamond (some might break out externally)

This is how a diamond has been cut, polished and the proportion and symmetry of the gem.

Here are 6 of the most popular styles:

This is what most people will look for in a gem - the size!
A carat is 0.2 grams and there are 100 points (or 200 miligrams) per carat

- Try and get your gems checked by an experienced jeweller
- Include as much information as possible and as many clear pictures as possible
- Include the original box and if there is a valuation certificate include that too
- If you are not sure ASK!!!

The majority of jewellers around the world will use the same letter coding
for the diamond clarity

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eBay has provided this guide for your general interest and information only. It is your responsibility to assess the quality of the diamond and eBay encourages you to follow the tips we offer in this guide.