Wimon Songroek

Joined AIGS school in  1982

Wimon Songroek joined AIGS as an instructor in 1982, shortly after receiving her A.G. Diploma. She loves teaching and her students also love her teaching style. This, in addition to her many decades of service, is why Wimon used to hold the position of school Principal.
Courses : Gem Identification

Jirayoot Wajanathawornchai

Joined AIGS school in  1996

Jirayoot's background includes: Accredited Gemologist from the Asian Institute of Gemological Sciences. Master of Arts in Communication Arts from Saint John’s University. He was a Gem Specialist (A.D. 1996 – 2009) for the Pranda Jewelry Public Company Limited. Jirayoot is the author of many Thai books: Gemstones: A Thai Love Story, Diamond: One of Nine Gems, Pearl: Gem of Life, and Inside the World of Ruby & Sapphire. Jirayoot has been a guest speakers at Prima Gold International Company Limited. He holds the position of Licensee & Administrator at AIGS.
Courses : Gem Identification , Colored Stone Grading and Pricing , Synthetics and Treated Gem Identification

Sirinee Mutitaporn

Joined AIGS school in  2002

Sirinee Mutitaporn joined AIGS in 2002, having previously received her A.G. from AIGS and G.G. from GIA Thailand. She is also a jewelry businesswoman and works with her mother, who has been in the diamond and colored stone business for over forty years.
Courses : Diamond Grading and Pricing, 5-Day Diamond, Pearl Course, Basic Ruby & Sapphire Treatments, Basic Ruby & Sapphire Grading and Pricing, Ruby & Sapphire Intensive Buying Course

Kamolmas Kosinthrakul

Joined AIGS school in  2003

Kamolmas Kosinthrakul is a jewelry designer and works with her mother, who has been in the gold jewelry business for over 30 years. She received her GG from GIA, Thailand and joined AIGS school in 2003. She teaches the Diamond Grading & Pricing class in Thai.
Courses : Diamond Grading and Pricing, 5-Day Diamond

Noppadon Engsiridumrongkul

Joined AIGS school in  2006

Noppadon Engsiridumrongkul comes from a gem trading family in Chanthaburi and has now himself been in the business for over 30 years. He has received his A.G. Diploma from AIGS, having first joined our school in 2006.
Courses : Colored Stone Grading and Pricing, Synthetics & Treated Gem Identification

Chitwadee Raviwong

Joined AIGS school in  2006

Chitwadee Raviwong is an international award-winning designer and holds a jewelry design diploma from Bangkok's Institute of Technology and Education.
Courses : Jewelry Design, Countertop Sketching

Tossaporn Vanichnam

Joined AIGS school in  2009

Tossaporn Vanichnam has over 15 years experience in the gold business. He is the Managing Director of Nam Gia Heng GoldSmiths Co Ltd and is on the Board of Directors of Power Gold Bullion Inter-Trade Co. Ltd.
Courses : Gold

Pattarat Termpaisit

Joined AIGS school in  2011

Pattarat Termpaisit studied Material Science at Srinakharinwirot University, and holds a G.G., A.J.P. and Graduate Pearls Diploma from GIA Bangkok - an institution where he was also an instructor from 2002 to 2011. In addition, "Pat" taught De Beers' corporate diamond grading classes in Botswana, was Marketing Executive for Regal Jewelry and now co-runs his JTC-based gem consultancy firm, GCI.
Courses : Gem Identification, Diamond Grading and Pricing, Jade, Synthetic & Treated Gem Identification

Charinee Amonrungmetham

Joined AIGS school in  2017

Charinee Amornrungmetham having previously received her A.G. from AIGS and Graduated. Graduate Diamond from GIA, Carlsbad, Carlsbad, California, USA. She is also CEO/Founder of Charinee Jewelry.
Courses : Diamond Grading and Pricing, 5-Day Diamond

Natthaphon Rattanasakolpatt

Joined AIGS school in  2017

Natthaphon has been an instructor at AIGS for almost 1 year. Prior joining here, he was an instructor, specialized in diamond and color stone, at GIA Thailand for 1 year. Regarding his educational background, he completed GIA Graduate Gemologist Program in Hongkong, and received a bachelor and master degree in Economics from Chulalongkorn University and University of Sheffield, respectively.
Courses : Gem Identification, Colored Stones Grading & Pricing, Synthetic & Treated Gem Identification, Diamond Grading & Pricing

Ting Wu (Michelle)

Joined AIGS school in  2017

Michelle Wu has studied gemology for 8 years and got a master degree in gemology from Gemological Institute China university of Geosciences. After completing her study, she moved to Bangkok and joined AIGS. She got the scholarship in AIGS and finished A.G. Program, working as both a gemologist in AIGS Lab and as an instructor in AIGS School. She speaks Chinese and English. She holds the position of Chinese Academic director in AIGS.
Courses : Gem Identification, Synthetic & Treatments Gem Identification

Patharaphum Sudprasert

Joined AIGS school in  2018

Patharaphum Sudprasert is a gemological instructor at AIGS who in charge of Diamond, Colored Stones and Synthetic & Treatments courses. He is an experienced gemological instructor and gemologist who loves sharing his passion in gemology with students.
Courses : Diamond Grading & Pricing, Colored Stones Grading & Pricing, Synthetic & Treated Gem Identification

Boonyanart Lakkhana

Joined AIGS school in  2006

Boonyanart Lakkhana received her jewelry design diploma from GIA,Thailand. She joined AIGS school in 2006. She teaches the Jewelry Design and Counter Top Sketching courses.
Courses : Countertop Sketching Jewelry Design


Joined AIGS school in  2018

Yajun Wang enjoyed a 10-year gemological education background at Gemological Institute China University of Geosciences, and received a doctorate in Gemology in 2017. He got a GIA scholarship, and finished GIA Graduate Gemologist Program at GIA Bangkok campus. He works as both an instructor in AIGS School and a gemologist in AIGS Lab.
Courses : Synthetic & Treated Gem Identification

Jinding Yu (Lydia)

Joined AIGS school in  2018

Jinding Yu (Lydia) has studied gemology for 7 years and got a master's degree in Gemology from Gemological Institute, China University of Geosciences (Wuhan) (GIC). She obtained Gemology certificates from British FGA (Gem-A) and GIC within half a year. Prior joining AIGS, she worked in HRD Antwerp Shanghai. Jinding Yu works as both an instructor in AIGS School and a gemologist in AIGS Lab.
Courses : Diamond grading & Pricing

Sasicha Otaka

Joined AIGS school in  2018

Sasicha Otaka joined AIGS in 2018.She Graduated in gemology (A.G. Program) from AIGS and she is also a teacher assistance in the Gem laboratory more than 4 years. Sasicha worked at chanthaburi Gems market. She has an experience in Gem detection.
Courses : Gem Identification