Blue John is a variety of fluorite found only in the beautiful Derbyshire Peak District around the town of Castleton where it is mined and nowhere else in the world, making it unique .
The 11ct Freeform Blue John Cabochon is evocative, to say the least, but that's why you're drawn to it in the first place.
Inventory Last Updated: May 26, 2022
Inventory Last Updated: May 26, 2022