The world's largest sapphire found in Sri Lanka - 3,563 carats
The largest purple star sapphire in the world has been unveiled in Sri Lanka, weighing an impressive 3,563 carats. Its value reaches at least $300 million, according to the Associated Press. This gemstone, named "Star of Pure Land," becomes the largest registered natural purple star sapphire in history. According to Ashan Amarasinghe, a gemology consultant, the sapphire exhibits a pronounced asterism with a six-ray pattern, making it unique among other stones.