This tourmaline is from the Congo & was part of a parcel of rough tourmaline ethically sourced through our block supply chain & was hand cut by Alan Poultney.
 
The tourmaline:
 
Invent No: APD302B 0011
 
Estimated weights colours & clarities
Estimated weight: 1.57ct
Cut: modified rectangular baguette crisscross cut
Estimated Colour: transparent green
Colour  Distribution: even. 
Hue: light
Tone: medium
Estimated Clarity: EC (Eye Clean)
Brilliance: 98%
Girdle: polished
Dimensions: 8.78mm x 5.19mm x 4.52mm    
                           (Length x width x depth)
Refractive Indices: 1.610  -  1.698
Specific Gravity: 2.82-3.90
Hardness: 7 - 7.5
Orign: Congo Africa
Treatment: No eveidence of heat treatment