Bridging the Source
to the World
For over 30 years, GemSource Amsterdam has been the trusted link between Asia's finest gemstone mines and factories, and the world's most discerning jewelers.
The Amsterdam
Gem Atelier
GemSource Amsterdam was founded with a single vision: to eliminate the layers of middlemen between Asia's extraordinary gemstone sources and the jewelers who need them. By owning the entire supply chain — from mining partnerships to cutting factories to distribution — we deliver unmatched quality at true wholesale prices.
Our journey began in Bangkok, Thailand, where our founders established a precision cutting workshop that would grow into one of Southeast Asia's most respected lapidary operations. Today, our Bangkok and Jaipur factories employ over 200 master craftsmen, each specializing in specific stone types and cut styles.
The Amsterdam hub was established to serve our growing European and global wholesale client base. Strategically located at the heart of Europe's diamond and gemstone trade, our Amsterdam warehouse enables rapid worldwide dispatch with full insurance and documentation.
"We don't just sell gemstones. We deliver the precision, consistency, and reliability that serious jewelers demand."
What We Stand For
Ethical Sourcing
We work exclusively with mining partners who adhere to responsible and ethical mining practices, ensuring fair wages and safe working conditions.
Fair Trade
Our direct relationships with miners and cutters ensure that value flows back to the communities where our gemstones originate.
Quality Control
Every stone is inspected by our gemologists before dispatch. We guarantee consistency in color, cut quality, and size across entire wholesale lots.
Global Reach
From our Amsterdam distribution hub, we ship to jewelers, designers, and retailers in over 60 countries with full insurance and tracking.
30+ Years of Excellence
1993
Founded in Bangkok, Thailand as a gemstone cutting workshop
2001
Expanded manufacturing to Jaipur, India — the world's gemstone capital
2008
Established Amsterdam distribution hub for European and global wholesale
2015
Launched direct-to-jeweler wholesale model, eliminating middlemen
2020
Reached 500+ wholesale clients across 60+ countries
2024
Celebrating 30+ years of precision cutting and ethical sourcing
Internationally Certified Gemstones
We work with the world's most respected gemological laboratories. Every significant stone can be accompanied by a certificate from your preferred authority, ensuring full transparency on origin, treatment status, and quality.
GIA
Est. 1931 · USA
Gemological Institute of America — the global standard for diamond and colored stone grading.
AGL
Est. 1977 · USA
American Gemological Laboratories — renowned for ruby, sapphire & emerald origin reports.
Gübelin
Est. 1923 · Switzerland
Gübelin Gem Lab — Switzerland's premier laboratory for provenance and treatment analysis.
GRS
Est. 1996 · Switzerland
GemResearch Swisslab — specialist in colored stone grading and origin determination.
Certificates available on request. Pricing for certification is separate and quoted per stone.
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