The Most Expensive Pink Diamond in the World The Pink Star Diamond, a completely flawless gemstone, set a record in 2017 as the most expensive diamond ever sold at auction, selling for a whopping ...

The Oppenheimer Blue, a 14.62-carat diamond, fetched $57.5 million in 2016, making it a benchmark in the gemstone market. Not to be confused with common jade, jadeite is the most prized form of the ...

While, yes, emeralds tend to be the most popular green gemstone, they’re certainly not the only one and not even the most expensive by carat weight. Some of the stones on our list, such as peridot or ...

internally flawless gemstone. It’s the world’s largest pink diamond, and it was first displayed to the public in 2003 in Monaco. It wasn’t sold until 2017 at a Sotheby’s auction in Hong Kong to a ...

The 12ct flawless Blue Moon diamond has set a new world record for the most expensive gemstone to be sold at auction. History was made at Sotheby’s auction in Geneva this week when the extraordinary ...

And why is it so expensive? Black opal is one of the ... Frederick: It's simply the most stunning gemstone on the planet. It's just remarkably beautiful. You can put the thing away for a week ...