World’s biggest blue sapphire ‘Queen of Asia’ found in Sri Lanka

A 310kg heavy natural corundum blue sapphire

A gem company in Sri Lanka has unveiled a rare and massive gemstone weighing 310kg's that has been certified as one of the biggest corundums ever found in the country.

The rare gem stone had been found three months ago from a gem pit in Ratnapura, popularly known as gem city situated around 85 km away from capital Colombo.