Article · 10 min
Why are some diamonds treated? Diamond treatments explained
Why diamond treatments matter before you buy Why should you care whether a diamond has been treated? A treatment can change how a diamond…
Gemstones · Learning pillar
Treatments & Disclosure
Most coloured gemstones on the market have been treated in some way, and that is not inherently a problem — but it must be disclosed, because it affects value, care and durability. This pillar explains the common treatments, starting with heat treatment, and sets out how treatments should be disclosed so you can ask the right questions and compare fairly. Read heat treatment first, then how treatments should be disclosed. Honest, transparent naming — natural, treated, laboratory-grown, synthetic, simulant — runs through everything here.
Guides in Treatments & Disclosure
Buying guide · 7 min
Why treatments matter: how to buy an emerald
Why emeralds are bought differently from other gems Why does an emerald need a different approach from a diamond? Because with emerald, visible inclusions…
Article · 8 min
Why are heat treated gemstones so common, and does it matter?
Why heat treated gemstones are so common Have you been told your stone is heated, and now wonder whether something is wrong with it?…
Article · 9 min
Why gemstone treatment disclosure matters, and how it’s done
Why gemstone treatment disclosure protects you Why should you need to know about treatments at all? Because you may not be able to see…
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