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Unheated Mozambique Paraiba Tourmaline 1.94 (Opa194)

untreated cuprian paraiba tourmaline  with some inclusions or treatments trapezoid emerald cut in ov
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1.94 Carat
Medium 50
Lightly Included



  • Identification: Natural Unheated & Untreated Paraiba Tourmaline
  • Carat: 1.94
  • Shape: Oval
  • Measures: 8.97x7.11x5.35 (millimeter)
  • Color Grade: Very Good
  • Tone: Medium 50
  • Color Zoning: Faint 
  • Clarity: Lightly Included
  • Cutting Grade: Very Good
    • Brilliancy: 75%
    • Depth: 75%
  • Origin: Mozambique
  • Treatment: None

Certificate No: IGI 365950937

Overall Grade: Very Good

Comment: "Copper/Manganese-bearing Cuprian Tourmaline", such is the official definition of 'Paraiba' independently from its origin and lately also from its hue and tone, hence we see neon-yellow or deep purple paraiba tourmalines on offer these days. This 1.94 is  the classic green-blue variety in their unheated state. This two-carat gem still contains its mangnese share, commonly a victim to the heat-process, and is noteable for its color-change ability. Except for a rare Umba-version, tourmaline does not change color, yet see under more images: pistaccio-green (mixed light), blue-green (office), yellow (tungsten) and even violet-purple (under UV-light only paraiba does this). Which is the common week-day hue? The handshot get's closest but as all paraibas their images are not as good as in person. If you have sharp eyes and choose a side-view you may (I, past 50 years, cannot) pinpoint one brown or orange tube, a classic in these gems, or the yellow inclusions in its center without lens, or see on our close-up images. The IGI report assures that your grandkids know they have the real deal and that it won't not be ditched for two bucks in a garage sales. In jewelry this gem will make an interesting, ever-changing candidate for ring-sizes up to ten. 


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