From rough to polished, diamonds hold a fascinating story. Experience the visual sense of the 4Cs and light performance. Learn about the development and detection of synthetic diamonds, and discover the new Sarine Profile™ digital experience that is changing the way diamonds are bought and sold.

Diamond Grading standards


Get to know your diamond via the traditional 4Cs

See the 4Cs

Light Performance

The new way to assess a diamond’s beauty

Discover Light Performance
synthetic diamonds

Synthetic Diamonds

A guide to synthetic, imitation and treated diamonds

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Digital Experience

A diamond is much more than its grading report

Try It
rough diamond

Rough Diamonds

Discover the rough diamond in its raw unpolished form

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Diamond guide

Download Diamond Guide

Discover all you need to know about diamonds, grading, the 4Cs and much more