Gems · Mineral specimens · Fine jewelry

Buying guide

Before you choose a gemstone, ask these five questions.

Black Michael Collection ·

A practical checklist for discussing identity, treatments, documentation, photography and fit before buying a gemstone.

Start with the stone, then the details

A color may catch your eye first. Before making a decision, take a moment to understand exactly what is being offered. A useful product description should help you connect the photograph to a specific stone, with clear measurements and supporting information.

1. What exactly am I buying?

Ask for the gemstone identity and whether the material is natural or laboratory-grown. Check the weight, dimensions and whether the listing is for a loose stone or a finished piece. Keep a copy of the description with your purchase records.

2. What is known about treatments?

Ask what treatments are known and what remains undetermined. A natural gemstone can still have been treated. Treatment information can affect your decision and the care a stone requires.

3. What documentation comes with it?

If a laboratory report is included, read the report itself and confirm it describes the stone offered. GIA identification reports describe the material and detectable treatments; geographic origin is a separate service for eligible stones. Do not assume a locality statement is a laboratory origin conclusion.

4. Can I see it in another light?

Request additional photographs or video if a single image leaves questions. Ask which lighting was used, whether the images have been edited, and for a view with a scale reference. Screens and lighting can change how color appears.

5. Does it fit my plans?

Tell the seller whether you plan to collect the stone, wear it, or have it set. Ask about suitable use and item-specific care. Confirm the total price, delivery arrangements and return terms before paying.

Have a question about a piece in the collection? Get in touch.
Back to the journal