Aga Khan emerald, world's most expensive green stone, fetches record $9 million at auction
A rare square 37-carat emerald owned by the Aga Khan fetched nearly $9 million at auction in Geneva on Tuesday, making it the ...
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Roman-era 'Good Shepherd' ring found off Israel in ancient shipwreck
The Israel Antiquities Authority said the ring was set with a green gemstone carved with the figure of a shepherd boy carrying a sheep on his shoulders. In the Bible, Jesus describes himself as ...