No matter the reason for their price, here are the 35 most valuable gemstones in the world, ranked by their price per carat ...

But to get there, the groundwork must be laid. First, with a once-in-a-generation discovery: The 6,225-carat rough emerald was unearthed from the Kagem mine in Zambia and given the name Insofu, ...

Colombia produces the world’s most expensive emeralds. The highest-quality stones can be worth tens of thousands of dollars per carat. Miners have fought over these treasures for centuries ...

The Insofu emerald, a 6,225-carat piece of rough found in Zambia’s Kagem Mine in 2010 and purchased by Chopard in 2022. Courtesy of Chopard In 2022, Chopard acquired the rough, and co-president ...

The most important necklace in the group is a diamond choker, featuring a 2.50-carat square-cut emerald. It’s complemented by a second necklace set with pink sapphires and emeralds that hold a ...