We sell treated-untreated rubies-sapphires and other gems specifically selected for education purposes and for gemological research. All the gems we sell have inclusion characteristics typical for their type of treatment of great gemological interest. All our gems have been treated in our gem treatment lab in Bangkok with known parameters and they are carefully selected and properly documented to serve as control and reference samples. Our gems are suitable for these applications:
- Study specimens to satisfy the requirements for the FGA diploma examinations in gemology
- Reference sample collection for reference and study
- Leaning gem inclusions on untreated-treated ruby-sapphire
- Microphotography inclusions
GEMSTONE TYPES: We have in stock the following types of gemstones:
We also have rubies and sapphires treated in various combinations (Lead and beryllium, synthetic, etc.
We can compose any set of your choice suitable for any purpose subject to availability. A set may consist of pairs (before/after heating), rough or cut in sizes ranging 0.25 to 3 carats showing inclusion characteristics of great education value for the gemologist, gemstone appraisar, student of gemology and hobbyist wishing to study gemstone inclusions.
WHY YOU SHOULD BUY THESE GEMS FROM OUR US?
Out of the hundreds of companies selling gems in the Internet, our 35-year old company is the only one that sells gems specifically for gemologists and labs for research purposes with guarantee treatment information, because they were treated in our lab in Bangkok. Buying gems from other sources, you do not actually know the exact nature of the treatment and therefore your research will be based on misinformation. Buying gems from outlets displaying opinionated and ambiguous statements issued by commercial trade laboratories stating “heat-treated and clarity enhanced with a foreign solid substance” (that could have mean lead-filled or borax-filled stones, without full disclosure transparency concealing the facts); also, we do NOT recognize “certificates” issued by gemological laboratories known by their deceptive business practices.
To learn more about heat-treated gemstones read the books Beryllium-Treated Rubies & Sapphires, Flux-Treated Rubies & Sapphires, Heat-Treated Rubies & Sapphires. You can also order our Gemlab reports on related issues.
HOW TO ORDER
We do not inventory stock list of the gemstones we sell as the inventory is constantly updated. Please email (ted@themelis.com) stating what stones you are looking to purchase and we will inform you accordingly.
WARNING: Due to US and EU ban on Burmese rubies we decline to ship to USA and European addresses. We are now investigating if we ship pink and other colored Burmese sapphires.
NOTES:
- All gems listed for sale are subject to prior sale
- Weight and measurements are approximate
- Color is described when observed in face-up position in daylight (5500oK)
- Clarity is described as observed under 10X magnification
- Satisfaction is guaranteed. If you are not satisfy with your purchase, you can return your stones and we will refund your money (less shipping to and from Bangkok, Thailand)
