Sumet Prasongpongchai
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Sumet Prasongpongchai is the director of the National Gem and Jewelry Research and Development Institute in Thailand, where he provides insights into the value and characteristics of gemstones, particularly emeralds, which have gained significant popularity and demand in recent years.
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Recent news mentions
Sumet Prasongpongchai commented on the increasing popularity of emeralds.
สร้อย 26 ล้านบาท ไขความล้ำค่ามรกต อัญมณีหนึ่งเดียวในโลกThai Rath·
Thailand· 2025-03-20
Thailand· 2025-03-20
