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Bangkok

Thailand

 
Carlsbad New York Bangkok Hong Kong London Mumbai Taipei

MEET OUR FACULTY

GIA instructors are passionate educators who bring years of industry experience to the classroom. All are leaders in their fields, and all are dedicated to helping you gain knowledge, acquire skills and launch your career.

gemology

Pitchaya Lopiti

Pitchaya Lopiti

Pitchaya graduated with a Bachelor’s degree in Material Science specializing in gemology from Srinakharinwirot University in Thailand. Pitchaya joined GIA in Thailand in 2011. She has earned the GIA Graduate Gemologist® diploma (GG™), Graduate Pearls diploma(GP), and Applied Jewelry Professional™ (AJP®). In her role as an instructor, she has been teaching the entire range of GIA gemology programs and has given numerous trade seminars both domestic and international. She previously worked in international logistics and jewelry companies which have provided her broad experience in all industry aspects as well as in gemstone identification. In 2016, Pitchaya received the prestigious GIA Staff of the Year Award for her outstanding contributions. She became Manager of Instruction at GIA in Thailand in 2018. Her solid background in gemology, along with her expertise in gemology makes her a valuable source of information for her students enabling them to achieve their goals and succeed in their careers.

Apisada Sompong

Apisada Sompong

Apisada started working in the gem trade after earning a bachelor's degree in business administration. With strong passion for gemology, she earned the GIA Graduate Colored Stone diploma and joined GIA as an associate instructor for the Graduate Colored Stones diploma program in 2024.

Teerarat Pluthametwisute

Teerarat Pluthametwisute

Teerarat Pluthametwisute holds a Bachelor of Science degree in Gem and Jewelry from the Faculty of Gems at Burapha University (Chanthaburi Campus) and a Doctorate in Geology from Chulalongkorn University. He joined GIA in 2025 as an associate instructor, sharing his expertise in gemology and advanced spectroscopy with students at the Bangkok campus.

Chotika Siribunsuk

Chotika Siribunsuk

Chotika Siribunsuk holds a Bachelor’s degree in Chemical Engineering and a Bachelor’s degree in Engineering from the University of Leeds, as well as a Graduate Gemologist diploma from GIA. She joined GIA in 2025, bringing with her a strong background in jewelry manufacturing.