Frequently Asked Questions 

Q: What can I call a “Created” gem?

A: Federal Trade Commission has a clear definition of what can and what can not be called a “Created” gem. The FTC states "essentially the same optical, physical, and chemical properties as the stone named"


Q: Does Tairus produce all of its gems or buys some to re-sell?

A: Tairus produces all of its gems by Hydrothermal process, except for Alexandrite that is grown by Pulled method


Q: How can I buy a Tairus Created Gem?

A: Visit our online store or contact us


Q: What is the difference between a Tairus Created Gem and a natural gem?

A: Our gems are grown by men, while natural gems are found by men; a created gem is also significantly less expensive. That is all. 


Q: How can I tell the difference between a Tairus Created Gem and a natural stone?

A: Only a trained Gemologist, after a thorough examination, using advanced gemological equipment, can tell the difference. You can e-mail us for recommended labs in your area. (For Gemologists wishing to be on our current list, please submit your credentials) Below are the currents labs we recommend for testing in 2019: 


Recommended Labs for testing 


Central Microprobe Facility, Ruhr-University, Bochum

DSEF German Foundation For Gemstone Research (German Gem Lab), Idar-Oberstein

Institute of Gemstone Research, University of Mainz, Mainz



E.G.C (European Gemological Center Ltd ), Ramat-Gan



Laboratorio Gemológico MLLOPIS, Valencia



Gübelin Gem Laboratory, Lucerne



AIGS (Asian Institute of Gemmological Sciences) Bangkok

GIA Research, Bangkok

GRS (Gem Research Swiss Lab) Bangkok



AGTA (AGTA Gemological Testing Center), New York, NY

EGL USA (European Gemological Laboratory), New York, NY

GIA (Gemological Institute of America) Carlsbad, CA