Brilliant cresyl blue

Cresil blau diamonds

The most expensive color.

The color of the Cresillblue diamond is very similar to sapphire blue, so at first you might think that this is what it is. That's right! But you need to remember that cresyl or semi-cresyl is just a cut, not a type of mineral. And “sapphire” itself is a traditional sapphire color. And if sapphires can be found in both almost transparent and opaque states, then cresyls are only transparent. These sapphires are considered to be the oldest known gemstones in the world. The exact place and time of their extraction and production are unknown. But some people think