Thats a beaut! And so colorful for being just added! usually you see them bleach at first from the stress of being moved!
I actually see the opposite happening (emdr888's gig looks fine, just speaking about brightly colored gigs in general). A few folks on the boards have purchased bleached gigs and the rate of survival is excellent. I'd pick a bleached gig over a pastel colored one (assuming it's also balding and has shorter than normal tentacles).
Sick gigs have a more vibrant color since (my hypothesis here) a lot of the zooxanthellae has died so the color of the anemone comes through. They have an even pastel color, lack a brown tone, and look really nice. However, I take this as a bad thing since all of the ones I've seen that looked like this eventually died. Keep in mind that all healthy gigs I've seen have a brown base color, with colored tips. The column can be a different color, but usually the main color of the oral disc is brown.
I attribute the cause as having something to do with the dead zoox and an internal infection. They typically appear to acclimate nicely, look good for about a week, then have ups and downs (deflating and inflating) where some days they look nice, other days look terrible and spew out brown "gunk" which many assume to be dead zoox versus food (since the anemones don't eat during this period), then eventually die at about the one month mark.
emdr888's gig appears to have the brown base color (evident at the top of the nem) and tentacle length looks good. I think that it should make the one month mark. After that, so long as the tank is stable, the gig should be fine.