When dealing with crosses the changes in the appearances come from the percentages of each cross in them. This one looks more like a jungle so it probably just has low diamond percentages in it. It still would be a diamond x jungle though. That has to do with how it was bred not how it looks. The reason they don't seem like either is right now carpet hatchlings get their colours as they age more. The more sheds thy get the brighter they will get as they grow. Right now it looks like a jungle hatchling. If a breeder sold it as a diamondxjungle that's is most likely what it is and that's what it looks like.