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Diamond guides
Plain-English guides to diamond quality, where diamonds come from and how to care for them.
Start with what you’d like to understand: the way a diamond handles light, where it began, or how to look after the whole piece.
The four Cs
The four Cs, explained
Understand cut, colour, clarity and carat before comparing individual diamonds.
Read the guide Diamond originsLab-grown and mined diamonds
Natural and laboratory-grown diamonds: origin, identification and questions worth asking.
Read the guide Everyday careCaring for diamond jewellery
Cleaning and storage considerations for the diamond, the setting and the metal around it.
Read the guideBefore you buy
Save the product code, selected options and questions you cannot answer from the listing. These guides explain general principles; they are not grading reports or verified product specifications.
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