the old Arabic name for Sri Lanka, where the stone was first discovered. The reason this mineral is so expensive is that it ...

The red diamond tops the list as the most expensive Diamond ... Found mainly in Sri Lanka and Tanzania, taaffeite is extremely rare, with few known gem-quality specimens. Its accidental discovery ...

Considering the importance of strengthening the gem and jewellery industry and increasing the sector’s contribution to the economy, the Export Development Board (EDB) in collaboration with the Sri ...