Red diamonds are fancy-color diamonds that are so rare that only a handful are found each year and only in a few mines worldwide. They are the most expensive type of diamond, costing more than ...
Kate Middleton’s most expensive piece of jewelry was originally gifted to Queen Elizabeth nearly 80 years ago.
The Oppenheimer Blue sold on Wednesday for more than $57.5 million including fees at a Christie's auction in Geneva, making it the most expensive diamond ever sold.
If the speculation is true, Zendaya's cushion-cut diamond would rank as one of the most expensive celebrity engagement ... minus the occasional "SNL" joke and red-carpet appearance.