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 ...
Aga Khan emerald fetches record $9 mn in Geneva auction
A rare square 37-carat emerald owned by the Aga Khan fetched nearly nine million dollars at auction in Geneva on Tuesday, ...
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Aga Khan emerald fetches record $9 million at auction
In 1960, Prince Sadruddin Aga Khan commissioned Cartier to set the emerald in a brooch with 20 marquise-cut diamonds for ...
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A Tradition Of Science and Education
Established in 1931, the Gemological Institute of America (GIA) is the world’s foremost authority on diamonds, colored stones, and pearls. A public benefit, nonprofit institute, GIA is the leading ...