My scale from the ebay link earlier in this thread (
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110492286503&ssPageName=STRK:MEWNX:IT ) arrived earlier today. It was very easy to calibrate and although it does seem to hover sometimes from .003 to even as high as .030, resetting it by turning it off and on will clear that up instantly.
Comments posted about the scale state that in some of the orders recieved, even having the scale turned off will drain the batteries. Right now, I do believe that happens (Solely based on the eBay comments), but I'm testing it since I have an abundence of AAA batteries. If it goes out, I'll edit this post, if not, you are good to go.
I do recommend this scale, it took a little over a week to arrive and it is very good quality. The packaging was nice and it comes with a soft cover that you can slip the scale into. It comes with a 10g calibration weight along with a small pan that goes onto the scale to keep your diamonds in place while measuring.
Thanks for the recommendation, SnozzleBerry!
Now, if you have a few pretty pennies to spare, here is a very helpful link to a review of scales that seem to be worth their money:
HBI Technologies - Product help and information for My Weigh, J-Scale and ProScale scales.
www.digitalscale.com
I hope this post even helped a tiny, tiny bit.