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What are the 4 C's? - Rachel Boston Jewellery

What are the 4 C's?

If you're wondering 'what is a carat?' and 'what is clarity?', we've put together a simple diamond guide for understanding the 4 C's.

 

WHAT DO WE MEAN BY THE 4 C'S?

When we talk about 'the 4 C's' we're referring to a universal diamond grading system. It was created by GIA, an independent nonprofit organisation that sets standards for determining diamond quality, and is the toughest standard that diamonds are assessed against.

 

WHICH DIAMONDS DO THE 4 C'S APPLY TO ?

→ Round Brilliant Cuts

→ White diamonds only

 

It does not apply to :

→ Champagne or Coloured diamonds

→ Salt and Pepper Diamonds

→ Any cut other than Round.

All other cuts of white diamond (e.g Oval, Emerald or Asscher to name a few) are graded differently, and do not take CUT into consideration. They are assessed by the other 3 C's, and we use their Symmetry and Polish as indicators of how well the diamond's facets interact with light.

The 4 C's diagram displaying how colour, cut, carat and clarity are graded by GIA's standard.

WHAT ARE THE 4 C'S?

 

COLOUR

The colour-grading system measures the degree of colourlessness in a diamond. It begins at D, meaning the stone is colourless, and goes to Z which would be a diamond that is yellow.

CUT

This takes into consideration how well a Round diamond’s facets interact with light, alongside the design and craftsmanship of the stone.

CARAT

Carat is the unit of measurement used to weigh a diamond. Put simply, this is a diamond’s weight and not just its size.

CLARITY

Clarity assesses the number, size, and position of internal inclusions and external blemishes on a diamond under 10x magnification. The grades are; Flawless, Internally Flawless, Very Very Slightly Included, Very Slightly Included, Slightly Included, and Included.

 

We're here to help guide you through the process of choosing the perfect diamond for your ring, and are always happy to give our opinion on the stones we've sourced for you. For further reading, the GIA's website is a fantastic resource that you can find here.

 

In our complimentary consultations, we cover the 4 C's and any other essential stone information to help you make an informed decision about the ring you'd like to create. We're available for in-person consultations at our East London showroom, or digitally via Skype, WhatsApp and phone for our overseas and UK-wide clients. Book yours via this link.

 

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