depends on several things.

If you plan on selling it and it doesn't have paperwork backing the het albino claim, to me it's just a pinstripe and that's all I would value it at.
If it has paperwork that the original breeder can back up, or the original breed can vouch for it being a het albino and can provide pictures of the clutch and pictures of the pairings , then the value would go up.

We picked up a pinstripe het albino without paperwork for $200 as a hatchling, basically the price of a female pinstripe hatchling.
The guy bought it at the local show as a pinstripe het albino and couldn't get it to eat, she's breeding for us now and we'll attempt to prove her out next season.