The world’s biggest blue star sapphire – weighing in at 1,404.49 carats – has been found in a mine in Sri Lanka. Gemologists in Colombo say the gem is worth at least $100 million ...

Sri Lankan authorities on Sunday put on show what they said was the world’s largest natural corundum blue sapphire, weighing 310 kilograms (683 pounds), which was found in a gem pit about three ...

The blue star sapphire has been nicknamed The Star of Adam Gemologists in Sri Lanka claim that the largest blue star sapphire yet has been discovered in a mine in the country. The gemology ...

Gemologists in Sri Lanka claim that the largest blue star sapphire yet has been discovered in a mine in the country. The gemology institute in the capital Colombo has certified that the gem weighs ...