Gem businessman Thushara Perera said he has been facing political threats over a special blue sapphire which he received in ...

Here are some of the most effective gemstones for a student looking forward to optimizing their learning experience. 1. Blue ...

The world's largest blue sapphire corundum was found in Sri Lanka ... including a 17 kilogram stone worth about $800 million US dollars. Photo: Getty Images.

The gem stone is in the shape of our Island home ... on December 24 and obtained a certificate confirming that it is a blue sapphire. He said Gemologists M.J.M. Dharmasekara and Janaka Hemachandra ...