Mark Villanueva, R.G.A., C.S.P., A.J.P. Gemologist / Jewelry Appraiser, is an instructor at the El Paso Gem and Mineral Society School of Gemology. Mark is a National Award Winning Writer, writing gemological columns for the South Central Federation of Mineral Societies. Mark also acts as expert witness for the El Paso Texas probate court for jewelry Identification and Valuation. He is an Accredited Jewelry Professional with GIA and has passed the J-Bar exam with the Jewelers Vigilance Committee. Mark is also a Certified Sales Professional with the Jewelers of America, and a Certified Diamontologist and Registered Guild Gemologist with the Diamond Council of America. Mark is also a member in good standing with the National Association of Jewelry Appraisers. He has also been awarded many prestigious commendation medals for his military service in Operation Enduring Freedom Konduz, Afghanistan.

Mark Villanueva R.G.A., C.S.P., A.J.P. will be discussing the different treatments of gemstones out on todays market. The lecture will cover topics on how laboratory gemstones are created using the different process. Flame Fusion, Flux-Melt, Pulled, Skull Melt and Hydrothermal process. The lecture will include how to detect this processes using simple equipment to identify if a gemstone is natural or created. The discussion will also include detection of dyeing, coating, color infusion, fracture filling and High Pressure High Temperature HPHT. All the gemstones pictured in the presentation will be present for viewing.

Saturday, June 25, 2016
6:00 PM Doors Open - Networking - Lite Fare, Dessert and Beverages
7:00 Presentation

107 SE Parkway Court
Franklin, TN 37064
(615) 559-3300 –
**Special thanks to Blaine Lewis

Cost: $20 At the Door

Maintaining up-to-date knowledge in the ever-changing gemstone industry can be quite challenging. You will not want to miss the extraordinary opportunity as Mark is an expert in his field and will be able to better prepare jewelers and jewelry store owners for what lies ahead.


Please RSVP by June 20, 2016 by contacting Solon R. Holt, TJA President at: This email address is being protected from spambots. You need JavaScript enabled to view it.

View Event Flyer


MARK VILLANUEVA R.G.A., C.S.P., A.J.P.
Registered Gemologist Appraiser

Curriculum Vitae: