The Natural History department conducts three auctions a year, firmly establishing Bonhams as the forerunner in the field internationally. An extraordinarily wide range of categories are offered, including mineral specimens; fossils, (including dinosaurian), petrified wood, amber and ammolite; unmounted faceted gemstones, (including rare phenomenal gemstones); gold; meteorites; lapidary, archaeological stone artefacts; mounts and animal, plant, insect and shell specimens, pearls and coral, and natural history-related decor and curiosities.

With consignments pulled from private collections, palaeontologists, fossil preparators, quarry and mine owners, we are able to provide many specimens that are fresh to the market.