Lot 2218. Unusual Large White Conch Pearl, Strombus gigas or "Queen Conch", Caribbean Sea; weighing approximately 16.93 carats and measuring 14.64 x 12.39 mm. Sold for US$ 7,500 (€6,327) inc. premium. Photo: Bonhams.

A large non-nacreous pearl having a plump oval shape, a virgin white body color and excellent, minute-grained flame pattern iridescence.

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