I recently purchased " The Jewel " from R. Smith. I have been on the quest for this Chromaharp for quite a while. I have seen only one other of these. There isn't much information out there. I like the versatility of the fact that the playing area of the Jewel is more open, and that you have 4 sets of chord bars to select from, each playin in 2 keys. I know that is was made by master craftsmen, and not on production line. I am looking forward to playing the Jewel when it arrives. I will post later to let anyone know more about it.