This is a white-gold and turquoise male HMPK from a spawn of a turquoise marble and a gold. This is a pet-quality fish that should not be used for breeding due to some asymmetrical scaling on his sides. Just look at him though, he is a beautiful fish that would make a great pet!
Please note that marbles change colors throughout their lives. If his pattern looks a little different when he gets to you, that is totally normal and natural. In fact, he does have a little more turquoise on his lower sides just since shooting this photograph last week.