In addition to some things that are very clearly not gems like Magma, there are more unique-looking gems that have been added ...

A Sri Lankan displays a star blue sapphire, claimed to be the world's biggest, on his palm in Colombo. Colombo - Sri Lankan gemologist says this could be the world's biggest blue star sapphire.

Experts say the stone, which is pale blue in colour ... fell out of the cluster and they were found to be high quality star sapphires. Ratnapura, which means city of gems in Sinhalese, is known ...