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 0012
Estimated weights colours & clarities
- Estimated weight: 7.78cts
- Cut: oval modified step cut
- Estimated Colour: transparent dark orange
- Colour Distribution: even
- Hue: dark
- Tone: dark
- Estimated Clarity: LI (Lightly Included)
- Brilliance: 98%
- Girdle: Polished
- Dimensions: 15.09mm x 10.14mm x 7.66mm
- (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
7.78ct Modified Oval Step Cut Tourmaline
£1,950.00価格