Expertise

Accuracy

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Ours is one of the only facilities of its kind solely dedicated to diamonds.

Every diamond that goes through the rigour of the grading processes we offer benefits from unsurpassed technical expertise as well as the use of proprietary, industry-leading instruments.

Knowledge

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The International Institute of Diamond Grading & Research builds on the De Beers Group's unrivalled 120-year-old knowledge of the diamond industry. We bring this heritage to bear in the grading of every diamond.

Expertise

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Our graders are passionately committed to their work; constantly researching the very latest in diamond grading technology. It is this personal touch – complemented by the International Institute of Diamond Grading & Research's advanced bespoke processes and technology – that ensures the highest levels of accuracy and consistency.

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5c's

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Carat

Every diamond's weight is measured in metric carats. The word itself is derived from the carob seeds that early diamond traders used as near-uniform counterweights to balance their scales.

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Colour

Diamonds range from 'colourless' through to a whole spectrum of tints and shades. With the exception of 'fancy colours', every diamond is graded for colour along an alphabetic scale from D to Z.

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Clarity

Flawless diamonds are extremely rare; most have tiny inclusions inside and on occasion external blemishes as well. It is the size and positioning of these inclusions, when studied at a 10x magnification, that determine a diamond's clarity rating.

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Cut

The art of cutting a diamond relies on precise angles, dimensions and polish to produce the best balance between size and brilliance.

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Confidence

We believe that there is more to a diamond than its weight and appearance.

To qualify for consideration by the International Institute of Diamond Grading & Research, every diamond submitted must comply with the United Nations' mandated World Diamond Council Kimberley Process. This provides diamantaires with the powerful endorsement of a 5th 'C'.

It stands for 'confidence'.

 

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