This tourmaline is from Mozambique & was part of a piece of rough that was sourced through our block supply chain in the 1980's & it was recut from a 9.28ct by Alan Poultney.
 
The heliodor:
 
Invent No: APD0006
 
Estimated weights colours & clarities
Estimated weight: 6.16cts
Cut: emerald step cut
Estimated Colour: transparent green
Colour  Distribution: even
Hue: dark
Tone: dark
Estimated Clarity: EC (Eye Clean)
Brilliance: 95%
Girdle: Polished
Dimensions:10.30mm x 9.43mm x 7.36mm
                           (Length x width x depth)
Refractive Indices: 1.610  -  1.698
Specific Gravity: 2.82-3.90
Hardness: 7 - 7.5
Origin: Mozambique Africa
Treatment: No evidence of heat treatment
Comment: This stone has been recut