Diamond
Colored stone
The way we work
Responsibly sourced. Polished by NIRU artisans.
Sri Lanka
Diamonds
Round melee, baguettes, fancy shapes. Cut at our Sri Lankan manufacture, with traceability from rough to polished.
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Bangkok
Colored Stones
In Bangkok, our skilled team brings color to life through the meticulous polishing of precision-cut precious and semi-precious stones in all shapes, including sapphire, ruby, tsavorite, amethyst, tourmaline, topaz, peridot, and tanzanite.
Explore Colored StonesOne chain of custody
Every stone, tracked.
Each stone is barcoded on arrival and tracked throughout the entire process. From source to manufacture, its chain of custody remains complete and verifiable.
Traceable stock
100% of every stone we hold
Source declaration
Verified for every stone entering our supply chain
Unique barcode
Issued on arrival, scanned end to end
Matter & meaning
Earth’s rarest creations, shaped by careful hands.
Sourcing & ethics
Ethics in our process, happiness in our purpose.
Responsibility begins at the source. Every stone is recorded in our ERP and traceable before it enters our process. A standard we uphold every day.
Explore Product EthicsNaturality
Born under Pressure. Refined by Time.
Created deep within the earth over millions of years, our stones are shaped by patience, permanence, and the rare beauty of nature's own process.
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Cutting hubs
Bangkok + Sri Lanka
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People worldwide
Across the group
0%
Stones screened
In our in-house laboratories
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Screening machines
Across two laboratories
One group,
a world of expertise.
Open a conversation
One contact for the entire group. Your enquiry will be directed to the right team.