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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 0007


Estimated weights colours & clarities

  • Estimated weight: 9.42cts
  • Cut: cushion step cut
  • Estimated Colour: transparent brown/red
  • Colour  Distribution: even
  • Hue: dark
  • Tone: dark
  • Estimated Clarity: LI (Lightly Included)
  • Brilliance: 98%
  • Girdle: Polished
  • Dimensions:  12.79mm x 11.90mm x 8.91mm
  •                            (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 

9.42ct Cushion Modified Crisscross Cut Tourmaline


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