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 months ago.
원문출처 : https://www.cnn.com/style/article/sri-lanka-sapphire-horana/index.html
원문출처 : https://www.cnn.com/style/article/sri-lanka-sapphire-horana/index.html