The finishes are the most notable differences, but there are others aswell. Ranging from inlays (vines, pyramids, 'screw head' type dots), to fretboards (maple, rosewood, ebony), to pickups (evolutions, paf pro's, breeds, etc). Also, some have all access
neck joints (the newer ones), the older ones like the VBK, the VSK, etc. have the old style neck joints. A big difference is the neck too. I have found the older jems have
thicker necks than my vwh, and I hear the dbk has the thinnest neck feel to it. Most expensive model in production is the Jem 77brmr.