Crafting beautiful gemstones is what we do!
Ko Thai began with a simple vision — to bring honesty, artistry, and trust into the world of gemstones. Over the years, that vision grew into a legacy of craftsmanship and global partnerships, with every stone cut and polished under one roof. Today, the next generation carries this story forward, blending heritage with innovation to shape brilliance for the future.
Years of Experience
Trade Fairs
Ethically Sourced Gemstones
Our Essence
At Ko Thai Impex, gemstones are more than commodities — they are symbols of trust, artistry, and legacy. For over three decades, we have stood for three values that define who we are:
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Integrity — Every stone we trade is authentic, certified, and ethically sourced.
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Craftsmanship — From cutting to polishing, we ensure precision and excellence under one roof.
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Trust — Built over generations, our relationships with jewelers, retailers, and designers are founded on transparency and reliability.
Our Values
Our Vision
We believe gemstones should feel personal — not distant, not transactional. For us, every ruby or sapphire is a reflection of integrity, trust, and the craftsmanship we’ve nurtured over decades.
So where are we headed?
We see ourselves as more than a supplier. We want to be your global partner — whether you’re a jeweler, a designer, or simply someone who loves the beauty of gemstones. We want our world to feel approachable, yet refined — a place where heritage meets fresh ideas and modern energy. And through storytelling, design, and education, we hope to make gemstones not just something you buy, but something you connect with.