The 4 C’s

Each of the diamonds we buy at Guthrie’s goes through our ten point checklist to meet a strict criteria for quality, and value for money for our customers. Below are the key four criteria that makes a diamond of significant quality are known as the 4 C’s, these are also the ones we offer your say on.

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Cut

A diamond's cut is the most important of the 4 C's to its overall beauty. An excellent cut diamond allows the stone to truly reach its potential, giving scintillation and a brilliant lustre which quality diamonds are known and loved for.

Carat

Carat, or the weight of a diamond is simply it's size. At Guthrie's we are able to supply you an excellent quality in almost any size.

Carat

Carat, or the weight of a diamond is simply it's size. At Guthrie's we are able to supply you an excellent quality in almost any size.

Colour

Colour grades of diamonds range from the letters D to Z. Crucially the difference between each grade is very subtle, also D, E & F are all considered colourless, Guthrie's only deal in diamonds above H.

Clarity

Clarity is the most complex of all the 4 C's - put simply a diamonds Clarity is measured in lack of visible inclusions inside a diamond - almost every diamond comes with inclusions, what is key is that none of these inclusions can be seen by the naked eye. All of our diamonds require several times magnification to detect any inclusions - this is the best mix of value for money, and exceptional quality.

Clarity

Clarity is the most complex of all the 4 C's - put simply a diamonds Clarity is measured in lack of visible inclusions inside a diamond - almost every diamond comes with inclusions, what is key is that none of these inclusions can be seen by the naked eye. All of our diamonds require several times magnification to detect any inclusions - this is the best mix of value for money, and exceptional quality.

Our Expert Advice OnChoosing Your Ring

Our Bespoke Process

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Gemstone Shape Guide

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The 4 C's

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Gemstone Selection

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