Melees (+11-3GR) and smalls (-11) make up around 65% of Grib mine production by value.
By carats they represent about 85% of our production.
Gem Z/Makeables and Clivage make up 45% and 27% of Grib production by value respectively.
Approximately 65% of Grib production by value are white goods (D-J), and less than 1% are brown goods.
Two times per year we conduct auctions for Specials (10.8+ carats stones) that are recovered at the Grib pipe.