About TopGemstoneHub
A gemstone house built around transparency
TopGemstoneHub is a gemstone house run by gemologists. We buy rough and cut stones directly in Sri Lanka, Thailand, Tanzania, Colombia, Brazil and Madagascar, grade every stone in-house, and send precious stones to independent laboratories before they are listed. Our buyers are jewellers, collectors and couples designing their own rings across Europe, the United States and Asia.
TopGemstoneHub buys cut stones and rough from cutters and dealers in the main gem centres, examines every stone before it is listed, and publishes what we know — and what we do not.
- ✓Every stone examined by a gemologist before listing
- ✓Treatments disclosed exactly as reported
- ✓Laboratory named on every certified stone
- ✓Photographed under daylight-balanced light
- ✓Shipped fully insured, duties shown before you pay
- ✓30-day returns on unaltered items