Information:
There was a 'counterpart' for this suit: Black Spanish Flower (with blue/green stones), which was exactly like this one, but with blue/green stones. Elvis wore it during his 1973 August/September Las Vegas engagement.
This suit was probably made, and first worn around the same time as it's 'counterpart', but so far no pictures has surfaced.
There was also a white version: White Spanish Flower, which was also worn during the 1973 August/September Las Vegas engagement.