SAM GEMSTONES Co. Ltd
Global Suppliers of Premium Rough Gemstones.
Global Suppliers of Premium Rough Gemstones.
At Sam Gemstones Co. Ltd., we bring 30+ years of experience sourcing authentic, certified rough gemstones for collectors, designers, and investors worldwide from our base in Bangkok, Thailand
IGI / GIA Certified
100% Natural and untreated stones — No synthetics
Trusted by customers in the U.S., UAE, UK, and China
From African Mines to Global Hands
We source gemstones directly from trusted African miners. Each stone is carefully selected and brought to our office, then offered to buyers worldwide—from China to Japan.
At Sam Gemstones Co. Ltd., we handle every deal personally. We work with miners and buyers to ensure stones are ethically sourced, fairly priced, and honestly represented. Our clients trust us for both quality and integrity.
Over 30 years of trusted experience in the rough gemstone trade
Direct sourcing from ethical African mines
Certified, authentic gemstones for collectors, designers, and investors
Based in Bangkok, serving clients across the globe
Transparent pricing and honest representation
Personalized service with a focus on trust and long-term relationships