4.19 ct Bi-color Tourmaline - Freeform

This 4.19-carat tourmaline is shaped as a freeform measuring 10.1 x 8.8 x 7.5 mm, showing a bi-color face, sourced from Nigeria.

Tourmaline takes a wider range of color than almost any other gem species, because its crystal will accept so many different coloring elements. Nigeria's gem fields rose to prominence in the 1990s and remain a significant modern source. It is wholly untreated, its color finished by geology rather than by any furnace or enhancement.

One of a kind, it exists exactly once; there is no second example to size up or down. It is the rarer object, and the kind of gemstone that becomes an heirloom. Caveman Gems hand-selects every gemstone and films it in good light, to give you the truest look a screen can.