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Interactive Guide

Interactive Guides

You can find out more about what to look for when buying a diamond in our Education section, or for an overview of the main characteristics; the Four C's, have a look at our interactive guides, supplied by the GIA, below.



Colour grades are based on the absence of colour - a D colour diamond is colourless, therefore has a higher value. Find out more





A diamond's size is measured in carats - the amount it weighs. Each carat is 200 milligrams and can be subdivided into 100 'points', allowing very precise measurements to the 100th decimal place. Find out more.
(Size may differ depending on your screen resolution)





The GIA Clarity Scale measures the absence of inclusions and blemishes. It has 11 clarity grades, ranging from Flawless to I3. Find out more





A diamond's cut grade assesses how well its facets interact with light. To grade the round brilliant cut, GIA calculates the proportions of the facets that influence the diamond's face-up appearance. Find out more.