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Detailed explanation-1: -The star sapphire cluster was found in Ratnapura, a traditional centre for the Sri Lankan gem trade, located 100 km southeast of the country’s capital Colombo. Sri Lankan officials said the cluster weighs around 510 kg or 2.5 million carats and has been named the “Serendipity Sapphire".

Detailed explanation-2: -World’s largest star sapphire cluster unearthed in Sri Lanka enters Guinness Book. COLOMBO, Jan. 14 (Xinhua) – The Sri Lankan government said Friday that the huge star sapphire cluster found in the country last year has been registered in the Guinness Book of World Records as the world’s largest star sapphire cluster.

Detailed explanation-3: -As the largest faceted sapphire in the world, the Blue Giant of the Orient is a massive 486.52 carats and another legendary stone from the Ratnapura region of Sri Lanka. Discovered in 1907, the rough sapphire weighed in at more than 600 carats and was purchased by major exporter O.L.M. Macan Marker & Co.

Detailed explanation-4: -The world’s largest natural corundum blue sapphire was discovered three months ago inside a gem pit located 45 kms away from Colombo. Almost 90 percent of all corundum stones found in the world are from Sri Lanka famed for centuries for its unique gemstones.

Detailed explanation-5: -The Star of Adam is an oval-shaped blue star sapphire, currently the largest star sapphire in the world. It weighs 1, 404.49 carats (280.898 g; 9.9084 oz). Prior to its discovery, the Black Star of Queensland, weighing 733 carats (146.6 g), was the largest star sapphire gem in the world.