We have Monty who is registered as Golden, his puppy coat was dark gold but his adult coat is coming through a deep rich red (like a squirel) his face is already very dark, I think when all his puppy fluff comes out he will def be a deep rich red, I think his breeders had an inkling of this as he has 'Red' in his kennel name. So I would hazard a guess that unless very drk when born it is really hard to say until they become a little older?