Fine Jewellery Guides & Inspiration | Jacob Mercari
How Fancy Coloured Diamonds Are Graded: Natural and Lab-Grown
A fancy coloured diamond is valued for the colour it shows face-up. Whether it is natural or laboratory-grown, a gemmological laboratory examines the diamond and documents its colour and identifying characteristics. The grading process helps you understand what you are shopping for, how the colour is described, and whether the diamond’s colour is natural, treated, or associated with laboratory growth.
