What is the ruling on the royal niqab that is wrapped from the side; is it forbidden because it is eye-catching and an adornment?

The question about proof of prohibition comes after establishing something as forbidden. There is no harm in wearing the niqab or anything else that achieves concealment and is not an adornment in itself, regardless of its shape or how it is wrapped. The best remains that which is closest to fulfilling the purpose of the legal hijab.