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: APD502P 0025
 
Estimated weights colours & clarities
Estimated weight: 4.43cts
Cut: pear modified crisscross cut
Estimated Colour: transparent orange 
Colour  Distribution: even
Hue: medium
Tone: medium
Estimated Clarity: LI (Lightly Included)
Brilliance: 95%
Girdle: Polished
Dimensions: 10.40mm x 11.53mm x 6.61mm    
                           (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 evidence of heat treatment