The Hope Diamond glows red
The hope diamond is one of those truly unique gems. One of it’s coolest features is that it glows a red-orange in ultraviolet light. And even cooler, it will continue to glow for up to 5 minutes once it is removed from the UV source.
Researchers have discovered that all blue diamonds phosphoresce, and that glow is so unique that a spectroscopic examination can be used to identify each individual blue diamond. It can even be used to separate lab grown blue diamonds from natural blue diamonds.
You can read more about this at the Science Daily.
