RE: Marsfontein M115 Feb 2020 11:28
Here are some stats from the study:
Average recovered grade 188,18 CPHT (or 1.9 carats per tonne)
1st two days production grade - 1,433 CPHT
1st month grade - 667 CPHT
Average value per carat $128,69 (from year 2000, prices have risen significantly)
Total revenue from M1 - $246,340,000
Also:
Mine produced 813 special stones (+10.8 carats)
Largest of 145 carats - part of larger carat stone that was found broken into 5 pieces. When put together, it was estimated that a further piece of about 70 carat was missing stone. This would have made it a plus 400 carat