Jamaican Blue Mountain Coffee

[forgop]

So, 11+ years ago, my wife and I went on our honeymoon in Ocho Rios and brought back a pound of Blue Mountain coffee for our dads. We didn't drink coffee at the time and thought nothing of it. We drink coffee now and I'd really like to get my hands on some, but I'm really not sure about what I'm finding online. With the pricing discrepancy, I feel like there's a "black market" of bogus stuff being sold on ebay and the likes. I'm almost sure the coffee bags we brought back weren't a vacuum-sealed type of a bag, kinda like a cloth bag of some sort. Does anyone have any insight they could provide to ensure if the cheaper stuff I'm seeing on ebay is the real thing? Thanks!