i bred my diamonds a couple of years ago and incubated the eggs at 31.5 c in a very accurate incubator.both parents were brightly coloured with standard diamond patterns yet ,after 2 years about a third of the clutch came out quite dark,while the other 2 thirds came out very bright . about half the clutch had alot of "linked rosettes(in a banded way,not striped)" that alot of the internet experts would call an intergrade, while the other half of the clutch ,the same internet experts would call pure.
but , i only bred them once and there was quite a variety of pattern and colour.
the stripe thing being done with selectivly bred bredli's.a breeder on the goldcoast has 2 bredli's that have an unusual style banding on them(not striped though) and a quarter of the clutch came out semi-striped.
i also own a semi striped bredli thet came from an Adelaide breeder that came from 2 normal normal looking parents .the pair have consistantly thrown clutches with a quarter of them striped which tends to lead to the assumption there is a "het for striping" gene going on with them. i just wonder when the first striped bredli was produced in captivity,whether they were accused of crossbreeding as i've never seen a photo of a striped ,wild speciman.
i've also seen a wild Darwin that had a freaked out pattern that that didn't resemble any darwin i've seen before.
there was also that one off "granite"looking MD bred last year (any updated photos?)
the more linebreeding being done these days ,there will be alot more morphs being produced in the future,so i dont think anyone could rule out the chance of pure striped diamonds being produced.
cheers
simon