A 310kg (1550000 carat) Blue Sapphire was unveiled on Sunday, 12th December 2021 in Sri Lanka. The National Gem and Jewelry Authority of Sri Lanka certified the highly valuable gemstone and said that the world’s largest corundum was found 3 months ago in Ratnapura (gem city – located 85 km from Columbo). The Authority suggests that it might be sold in international market. Gem pit owner put the item on display at his house in Horana.
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