Sold August 31, 2026
Tourmaline
20.85 ct Bi-color Tourmaline - Slab


This 20.85-carat tourmaline is shaped as a slab measuring 22.7 x 22.4 x 4.3 mm, showing a bi-color face, sourced from Brazil.
Tourmaline takes a wider range of color than almost any other gem species, because its crystal will accept so many different coloring elements. Brazil has been one of the most prolific colored-gemstone sources in the world for a century, and still turns up new material on a regular basis. It is entirely untreated; no heat, no enhancement, the color exactly as the earth made it.
Its exact combination of color, cut, and origin is its own, the kind of center stone you choose on purpose and build a piece around. Caveman Gems hand-selects every gemstone and films it in good light, to give you the truest look a screen can.
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