The world’s largest blue star sapphire has been discovered in a mine in Sri Lanka, BBC News reported.
The gem weighs 1,404.49 carats, the news network quoted experts from the gemology institute in the capital Colombo as saying. They said they have not certified anything larger so far.
Before its discovery, the biggest blue star sapphire was 1,395 carats.
The latest find is conservatively valued at US$100 million and could fetch up to US$175 million if offered at an auction.
It has been named The Star of Adam by its current owner, after a Muslim belief that Adam arrived in Sri Lanka after being sent away from the Garden of Eden.
Sri Lanka produces US$103 million worth of gem products annually. Sapphire is the gem industry’s main export.
Blue star sapphires are so named because of the distinctive mark found at their center.
“The moment I saw it, I decided to buy,” the current owner, who wishes to remain anonymous, told the BBC World Service’s Newsday program.
“When the stone was brought to me I suspected that it might be the world’s largest blue star sapphire. So I took a risk and bought it.”
The owner declined to say how much was paid for it.
The new gem was mined in the city of Ratnapura, in southern Sri Lanka. The place is known as the City of Gems.
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