Laboratory-grown diamonds, simulants, and treatments
How laboratory-grown and imitation stones should be named, and which treatments to ask about.
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Guides
Laboratory-grown diamonds: how they should be named
A diamond, named as laboratory-grown.
Diamond simulants, imitation stones, and testers
Look-alike stones, named plainly.
Diamond treatments and what a seller should disclose
When a treatment should be disclosed.
Gemstone treatments: heating, filling, dyeing, and more
The treatments the FTC lists.
Start with laboratory-grown diamonds
A diamond, named as laboratory-grown.
