Information:
Although most (known) pictures of this suit come from January/Febraury 1974, it's very much possible that Elvis already wore this suit during his 1973 August/September Las Vegas engagement. The last time(s) Elvis wore this suit was during his 1974 March tour.
Also a counterpart was made the Aqua Blue Vine suit; it had the same design as this one, only the big stones were different coloured, and the belt was different.