Try and find Kona Extra Fancy instead of prime. If you are going to spend the money might as well get the best. I noticed the company you buy from sells prime...and their estate kona doesn't say the rating...so I would assume it is also prime..
Koa offers Prime and Estate also Private Reserve which is Extra Fancy & peaberry combined. I buy the Estate and its realy good. I've tried many of there roast and find them all very good.