Doesn't look like it from the picture, but I have seen it lose color before when water parameters or lighting were not ideal. Low or fluctuating alk, low salinity, too much light / or not acclimated slowly enough to high light, extreme shipping stress are all things that could potentially cause it. Give it some time to adapt, make sure the alk is correct and stable. If it still looks like that in 6 weeks or so, then I'd say no, it's probably not original. All 3 of my pieces have faded and / or lost color to varying degrees for various reasons, but all have bounced back to full vibrant colors.
HTH