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Unheated Afghani Tourmaline 0.92 (RGTO092)

multi-green tourmaline without inclusions or treatments precision cut IGI report included
more images
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0.92 Carat
Spring Leaf Green
Medium Dark 65
Lightly Included



  • Identification: Natural Unheated & Untreated Tourmaline
  • Carat: 0.92
  • Shape: Rectangular Octagon
  • Measures: 6.12x5.25x3.40 (millimeter)
  • Color Grade: Very Good
  • Tone: Medium Dark 65
  • Color Zoning: None
  • Clarity: Lightly Included
  • Cutting Grade: Very Good
    • Brilliancy: 75%
    • Depth: 65% 
  • Origin: Mozambique
  • Treatment: None

Certificate No: AIGS 12111568 (see 'more images')

Overall Grade: Very Good

Comment: Last, and greenest, gem from a parcel of Mozambique tourmalines, without the extra blue of his brothers/sisters coming from that mine. The image on the AIGS report shows too much blue (or they mixed up the images because all others, like e.g. 0.76ct, were in similar size and shape but more blue, only this one here was pure green.) Note the two different handshots below, one hidden in shadow, the next one positioned just so that some light can reflect on the surface. This light, BTW, is no more than the reflection of sun rays coming through a small attic window, hitting a square-meter of ceiling or wall. One inclusion, to me lens-only, but with the usual fill-in trick the brain plays once we have seen the inclusion under magnification. Bright green of a leaf in spring, never dull. 3*NOS quality in a classic natural green tourmaline. Its classic cut and shape will fill a ring up to US-size seven, or nine if we add some space with bezel or halo, perhaps with band and bezel in different gold-types which always suits green gems well (yellow bezel, white band).


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