Thanks. I've seen some of that info before. I don't see anything there that looks like it is going to tell me the dimensions.
Well, if these Zildjian products were laid out together and photographed (hard to say if they all were or not - probably not), the Earth Plates seem to be about the same size and a little smaller than a Burma Bell. The Burma Bell, the gold dude in the bottom center of the photo, measures about 8" across the bottom. The Zil Bells shown on the left of the photo are 6" and 9", so they look a tad small compared to the Burma Bell - but they're close. So, the photo might be
fairly accurate as to size.
You could also try contacting Zildjian's customer service department:
Avedis Zildjian Company
International Headquarters
22 Longwater Drive
Norwell, MA 02061
USA
