
How diamonds get their color
Nitrogen, boron, and changes inside a crystal can give diamonds their color. Growth conditions and treatments explain why similar colors can have different origins.

The science, craft, and design
of modern diamond jewelry.
We write about diamond growth, the tools used in jewelry making, and questions about finished jewelry.
Materials explainer
Nitrogen, boron, and changes inside a crystal can give diamonds their color. Growth conditions and treatments explain why similar colors can have different origins.
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Nitrogen, boron, and changes inside a crystal can give diamonds their color. Growth conditions and treatments explain why similar colors can have different origins.

CVD and HPHT describe how a diamond was grown. To judge the finished stone, you need to look at the stone itself and its documentation.

Cutting, inscription, and clarity treatment use lasers for different purposes. Knowing which operation took place is the first step to understanding the claim.

Before you buy or stock an unfamiliar piece, check what the description leaves unanswered.
Collection guides
See how we present the diamond without a traditional setting around it.