Gemstone Treatments
An introduction into the world of gemstone treatments and enhancement
Learn more about the most common gemstone treatments, what these treatments do and which gemstones they are most commonly used on.
Treatments such as irradiation and heat treatments are what we class as 'stable treatments' meaning they cannot be reversed during normal everyday wear or repair.
'Unstable treatments' such as fracture filling or oiling may be damaged or removed during everyday wear or repair work so it is so important that consumers understand these treatments and more importantly that retailers disclose them.
Gem Encyclopaedia
Learn more about your favourite gemstones with these introductory GIA guides. Learn about where these gems come from, how they form, their history and lore, what treatments may be used on them and much more.
You may even discover a new favourite!