What episode does dimand kidnap sailor moon and dress her up as queen?

The episode where Diamond kidnaps Sailor Moon and dresses her up as a queen is Episode 150: "The Wicked Queen of Darkness."

This episode is part of the Sailor Moon Stars season (the fifth and final season of the anime). In this episode, Diamond uses her powers to transform Sailor Moon into a queen-like figure and manipulate her into serving her evil purposes.