Hi Michael,

You're asking some good questions..some of which I'm not sure of the answer!

The multiple base circle idea sounds like it might work. Would you be able to create
your own circles and designate them as Object 1, 2, 3, etc?
I would not say there is a standardized set of sizes, stones are measured down to the tenth of a mm
so there are 100's of different sizes used.

Jesse