Collection of 27 Rhodochrosites--"Red Gold" from the Kalahari. N'Chwaning 1 Mine, N'Chwaning 2 Mine, Hotzatel Mine, Wessels Mine, Black Rock Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Estimate US$ 200,000 - 250,000 ( €140,000...

Demantoid Garnet and diamond 'grasshopper' brooch, circa 1900 The realistically modelled insect set with numerous round demantoid garnets and with 36 old European-cut and single-cut diamonds weighing approximately .70 carat, the eye accented with a small...