How can you tell a black sapphire?
Black sapphires are found in translucent to opaque varieties and can appear solid black. They often do not reflect much light and can seem to absorb all the light that touches it. Look for a black sapphire that has even saturation and tone and is opaque.
What is sapphire black?
Black sapphire is an aluminum oxide mineral that usually forms in crystals. These stones appear to absorb any light that hits them. They range from translucent to opaque but don’t reflect much light in either case. The color ranges from blue-black to gray. Black sapphire is exceptionally durable.