WHY?
Jet is a type of lignite, the lowest rank of coal, and is a gemstone. Unlike many gemstones, jet is not a mineral, but is rather a mineraloid. It is derived from wood that has changed under extreme pressure. ( A fitting Solidarity Jewellery that if, put under the pressure of Black support could elevate the value, to be more precious than gold! ) Have we got enough Jewelers?
Whitby Jet Unity Jewellery 
Whitby Jet Unity Jewellery 
Jet Unity Jewellery