Blue diamonds are an alluring option for those seeking beauty and a value-holding investment. In fact, colored diamonds have shown significant appreciation over the last 20 years. Both collectors and investors alike have flocked to these colorful diamonds and when they come to auction, the price tag often sets records. Here are a few blue diamonds that have hauled in impressive price tags over the last few decades.
The Blue Moon Diamond
In 2015, the 12.03-carat ‘Blue Moon’ diamond was sold for over $48 million at auction. At $4 million per carat, the Blue Moon diamond is one of the most expensive diamond per carat ever sold. Discovered in 2014 at the Premier mine in South Africa, this stone demonstrates the highest possible color grading for blue diamonds, being a breathtaking Fancy Vivid Blue. Adding to the beauty of this gem, the GIA has labeled it as IF (internally flawless), a truly perfect clarity grade.
The Blue Heart Diamond
Another diamond that was recently determined to be from the Premier mine in South Africa is the Blue Heart Diamond. The origin was a mystery until a group of scientists from the Natural History Museum of the Smithsonian Institution concluded the diamond was a descendant of South Africa. In 1910, Mrs. Unzue purchased the Blue Heart diamond from Cartier just two years after it was discovered in 1908. It is a 30.62-carat stone and the largest heart-shaped diamond in the world. The GIA rates this diamond with a clarity grade of VS-2 (very slight inclusions), and it is arguably one of the most beautiful diamonds in the world.