RE: do18 It all depends on how fine the mesh they use. In 1994 we were getting over 2 carrat per ton in some places in DO27 but with the 150 ton sample with a bigger mesh we only got about .98 carrat per ton. I think this was brought to there attention, since there is value to the diamonds not being graded. I think DO18 we will get a grade of .75 to .85 carrat per ton with the bigger mesh, what would be nice is to see some pink stones in the sample,