Know Your Rights: Gemstone Treatment Disclosure

BUILD YOUR LEGACY THROUGH KNOWLEDGE

What are gemstone treatments?

Gemstone treatment is a legal practice in the jewellery industry meant to enhance colour and clarity and often hide defects in a natural gemstone.

Due to significant financial benefits, it has become a standard approach for most jewellery industry representatives, from prominent jewellery houses to your local jeweller.

On regulated markets, it is a legal requirement that sellers disclose such treatments, which are not always identifiable by the untrained eye and are sometimes difficult to identify, even by experts.

Disclosures protect you from overpaying for a treated gem and help ensure you receive a gemstone whose value matches its described quality. Clear disclosure also supports informed decision-making and after-sale confidence.

See: The World Jewellery Confederation Code of Ethics

Some markets provide jewellery Consumer rights guidelines regulating disclosure and care requirements to protect sellers and consumers.

This is the case of the Federal Trade Commission in the United States.

A woman examines jewelry at a store counter, holding a necklace with a focused expression.

Buyer beware: The effects of the treatments tend to fade, with severe consequences, including breakage on soft impact, diminished resale value, and loss of quality over time.

For this reason, treated gems may require special care.

See also reputable tutorials on gem treatment identification and certification standards

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FREQUENTLY ASKED QUESTIONS - HOW TO BUY JEWELLERY

Please reach out to us at info@legacygemstones.com if you cannot find an answer to your question.

What is the first rule when buying a gemstone?

Ask for and read the Certification before looking at your future jewellery purchase. Without a written guarantee, you have no after-sale protection if the stone proves to be damaged and treated to hide a defect.

You can't tell if a gemstone is treated or not on the spot by using a magnifier, even if you are a jeweller.

Identifying a treatment is a complex process; only a gemologist conducting an analysis in a lab environment can give a definitive answer.

What should I look for in the Certification?

Certification checklist:

1) States whether the gem is natural or synthetic, treated or untreated.

2) Specifies the type of treatment used.

3) Describes any stability issues or care requirements.

4) Includes lab details and issue/expiry if applicable.

5) Is issued by a recognized independent lab (e.g., GIA, GGL, AGS) with verifiable results.

This characteristic should be easy to identify and put in plain terms!

Why haven’t I heard about treatments and enhancements before?

Although it is mandatory, under FTC regulations, to disclose the treatments/alterations done to a gemstone, most jewellers prefer not to discuss this with their customers, especially before a purchase.

Many retailers disclose treatments only in fine print; proactively asking for full disclosure and receiving a comprehensive certificate builds trust. This transparency protects you from misleading claims and supports informed buying decisions.