The 5 C's, learn

The Spark of Confidence

What are the 5 C´s

The quality and value of a diamond are judged on five fundamental criteria known as the ‘five C’s.’ The carat-weight, colour, clarity, and cut…and the most important C of all, confidence. Confidence is found in the form of an accurate diamond grading certificate. Some differences in quality are easily noticeable, others need specialist equipment and qualified graders with years of experience to assess and detect. Accurate assessment of a diamond is only possible prior to being set. Once the stone is set even a trained grader cannot precisely determine colour, size and purity clarity. Therefore quality and value can only be estimated. Minor differences in colour, clarity and weight can have a major effect on value. For this reason, laboratories only grade loose diamonds.

In addition to the five C’s, laboratories test for treatments, which enhance the colour and clarity of the diamond. Treatments such as fracture filling, laser drilling and high temperature high pressure, significantly reduce the value of the diamond and should be disclosed.

> Cut
> Colour
> Carat Weight
> Clarity
> Confidence

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latest news

Thursday 18 May, 2017

DE BEERS TAPS INTO POLISHED DIAMONDS MARKET WITH FIRST-TIME AUCTION

Anglo American’s De Beers, the world’s largest rough diamond producer by value, has decided to begin selling its own polished diamonds in auctions for the first time in its history.

Wednesday 17 May, 2017

SOTHEBY'S SELLS THE APOLLO AND ARTEMIS DIAMONDS FOR £44.9 MILLION

Wednesday 10 May, 2017

US WOBBLE TAKES SHINE OFF PANDORA SALES

Pandora reported strong growth in the first quarter, but US store closures and sluggish mall traffic dented its performance stateside.

Sunday 7 May, 2017

IMPORTANT ADVICE ON HOW TO SELL YOUR DIAMONDS

If you are you considering selling your diamond, but feel as though you have no idea how or where to begin with the process?

Thursday 4 May, 2017

GEM DIAMONDS RECOVERS 80 CARAT ROUGH DIAMOND

Another D colour Type II diamond weighing 80 carats has been recovered.

Wednesday 3 May, 2017

THIS BLUE DIAMOND IS NATURAL—AND ALSO SYNTHETIC

The good news is, from everything we know, all lab-grown diamonds are detectable, and the detection devices are getting better and (somewhat) cheaper.

Tuesday 25 April, 2017

CHRISTIE’S TO OFFER 92CT. PENDANT

A 92.15 carat diamond pendant worth up to $20 million will lead Christie’s Magnificent Jewels auction in Geneva next month.