I have some experience with colored gars-including getting ripped off by one of our "trusted" vendors. I purchased an "A" class platinum florida gar from Sittipat with a 100% money back guarantee. Guess who didn't get his money back when it turned into a normal colored florida gar within 2 days. I hope Sittipat is enjoying my $3,500!
My Opinion of the pictured gar: it is a short body and therefore more valuable. The color looks stable but a lower class- considered unofficially a "B" class gar. Buy it if you like it- it will probably stay that color and not get to big.
Personally I would hold out for a snow gator gar- and luckily I know of a trusted source for these Ultimate gars. The price is much higher but the quality is without compare.