Sturmanite from N'Chwaning Mines, Kuruman, Kalahari manganese field, Northern Cape, South Africa. Comes with certificate of authenticity Average Weight (Carats): 582.7 ct Size (mm): 42 x 35 x 35mm Ref. : SKU028569
Sturmanite from N'Chwaning Mines, Kuruman, Kalahari manganese field, Northern Cape, South Africa. Comes with certificate of authenticity Average Weight (Carats): 582.7 ct Size (mm): 42 x 35 x 35mm Ref. : SKU028569