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Before purchasing any diamond ring ,
learning about diamonds is first learning about the, "four Cs", of
diamonds which are considered the most important grades and
categories:
Cut Clarity Colour Carat weight These are the criteria jewellers use when grading diamonds, and they're the ones you'll need to understand to buy the right engagement ring for you. 
 
Why not see our wide selection of Diamond Rings at our
All our diamond rings come with a Thomas Gear valuation certificate.
The Story of Diamonds
We at Thomas Gear Jewellers issue our customers with an independent certificate from 1 of the top Gemmological Institutes in the world on all diamond rings over 0.50 carat. Certification is proof that a diamond has gone through an independent, unbiased exam by a third party laboratory. During this certification process a professional gemmologist evaluates the diamond and issues a Certification Report on its shape, carat weight, colour, clarity, measurements, proportions, fluorescence and overall finish. The various Diamonds we sell here at Thomas Gear Jewellers are certified by one of the major third party laboratories below:
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