Lot 2466. Large and Impressive Rubellite Tourmaline, Nigeria, weighing approximately 85.27 carats and measuring 27.59 x 20.43 x 15.86mm mm. Sold for US$ 37,500 (€31,637) inc. premium. Photo: Bonhams.

Faceted as a cut-cornered emerald-cut with scissors-cut crown facets, this is a world class tourmaline by any measure. Notable for its large size, which still allows it to be mounted as a ring or pendant and its exceptional clarity and deep, pinkish red color. This is a stone worthy of attention by the most serious collector.

Bonhams. LAPIDARY WORKS OF ART, GEMSTONES AND MINERALS, 6 Dec 2017, 10:00 PST - LOS ANGELES