Im sure if Ralph could have given you the fish at the agreed price he would have,he is a stand up guy and $4200 for a gem tang is just pure GREED.....The person that listed it for that price should be tossed out of the buisness,as for the regal thats a great price if it has a yellow chest than its red sea unless its still in juvi colors then its a little harder to tell but not by much since the yellow comes in at roughly 1/2-3/4" in body size and Ive never seen one that small in the trade.
I agree on what u said about Gem Tang. However, the regals from India Ocean also have yellow belly. AO probably had Indian Ocean.