How big do gemstone need to be to cut or polish?

We are a lapidary and normally we can cut tiny stones. the smallest stone we cut is 1mm It all depends on the materiel Sapphires and hard Stones can be cut to 1mm stones, but Stones like apatite and kunzite can not be cut so small.

If you are going to set the stone in a ring or pendent as a center Stone It has to be a descent size at least 10mm x 8mm ( approx 3 ct )

Ahmed

finegemsonline.com