Photos taken in a light box  - this is a dark cab - please read all descriptions
Stone Type:  Tourmaline
Colour:  Very dark burgundy
Shape/Cut:  Trillion
Size/Dimensions:  13 mm 
Carats: 1.92
Clarity : Opaque - has a sizeable inclusion in the base that does reach the surface for four mm. Has a couple of small surface marks - hence the price 
Treatment: 
Origin: Brazil