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 0012
 
Estimated weights colours & clarities
Estimated weight: 0.92ct
Cut: lozenge crisscross cut
Estimated Colour: transparent green
Colour Distribution: even.
Hue: light
Tone: medium
Estimated Clarity: LI (Lightly Included )
Brilliance: 98%
Girdle: polished
Dimensions: 5.72mm x 5.46mm x 4.02mm
(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