Violet Copper-bearing TourmalineParaiba or Rio Grande do Norte, Brazil Fashioned as a triangular, brilliant-cut this well-saturated stone has a rich violet hue. Weighing approximately 0.91 carats and measuring 6.63 x 5.69 x 4.04mm FootnotesAccompanied by a GRS Gem Research Swiss Lab report numbered GRS 2021-077179 dated July 12, 2021 stating that the 0.91 natural tourmaline or "Cuprian-Elbaite" contains minor elements including copper that are found in tourmalines in Paraiba (Brazil) and that the stone has undergone heat treatment.
Violet Copper-bearing TourmalineParaiba or Rio Grande do Norte, Brazil Fashioned as a triangular, brilliant-cut this well-saturated stone has a rich violet hue. Weighing approximately 0.91 carats and measuring 6.63 x 5.69 x 4.04mm FootnotesAccompanied by a GRS Gem Research Swiss Lab report numbered GRS 2021-077179 dated July 12, 2021 stating that the 0.91 natural tourmaline or "Cuprian-Elbaite" contains minor elements including copper that are found in tourmalines in Paraiba (Brazil) and that the stone has undergone heat treatment.
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.jpg "Source: Christie's")
.jpg "Source: Christie's")
