Would it be possible for you to try drawing them out, either on paper or using some kind of drawing tool?
Cheaper than buying CZs to play with!
DK
It's easier for me to lay out the stones in some dough or something than try to draw lol. I already have some small CZs, just have to find a few more sizes. The craft quality ones aren't very expensive. I'm thinking lab diamonds would be over $1,000 so I might go with moissanite.