Singapore · Since 1998
Exceptional stones.
Enduring trust.
Fine coloured gemstones sourced with discernment for jewellery houses, retailers, designers and private collectors.
Our perspective
More than a supplier.
A trusted eye in gemstones.
Star Siam connects the world’s remarkable gemstones with people who understand their value. From a single distinctive centre stone to calibrated production parcels, every request receives the same attentive, transparent service.
Discover our storyCurated selection
Gemstones with character
Explore a considered selection shaped by colour, cut, origin and your exact brief.
Explore all gemstones
Why Star Siam
Confidence at every stage
Quality first
Each stone is carefully assessed and represented with clarity.
Global reach
Long-standing supplier relationships across key gemstone origins.
Tailored selection
Curated options aligned to your design, budget and timeline.
Personal service
Direct, responsive guidance from first brief to delivery.
Sourcing without borders
Your brief. Our worldwide network.
When the right stone is not in our current collection, we activate trusted relationships across Asia, Africa and the Americas to find it—precisely, responsibly and efficiently.
Explore sourcing25+
Years of expertise
18
Sourcing regions
B2B & B2C
Flexible service
1:1
Personal guidance
For trade
Wholesale partnerships
Reliable supply, calibrated requirements and confidential support for jewellery brands, designers and retailers.
Our wholesale processFor individuals
Private clients
Personal guidance for meaningful gifts, bespoke creations and collector acquisitions—always by consultation.
Book a consultation“Star Siam understands that trust is as important as the stone itself. Their guidance is considered, responsive and always commercially aware.”
— Jewellery designer, Singapore Client testimonial placeholder
Begin a conversation
Tell us what you are looking for.
Share your gemstone, quantity and timeline. We will respond with a tailored selection and quotation.
Request a Quote