How many grams does a diamond mine usually produce?

Diamond mines generally produce 20 carats. According to relevant public information, the mineral of diamond is called diamond. The deposit is divided into primary ore and placer. Primary ore is the diamond that occurs in the host rock. Placer is separated from host rock by external forces such as weathering erosion and flowing water impact, and then diamond deposits are mostly sandy. Most diamonds do not exceed 20 carats. Among the largest diamond mines in the world, the largest diamond in Cullinan can reach 3000 Dockwra, which is of great value.