Don't you just love those moments between Amy and Taffy the dog? D'aww cute!
During the power-sharing between Lady Graciel and Princess Amaya in Sword of Sorcery #3, Lady Mordiel gets into Amaya's mind and tempts her to kill her mother and take all the power for herself. Right when she about to strike the blow, Amaya remembers her mother's love. She fights off the temptation and her mother calls her a true princess of House Amethyst!
The fifth animated short, when Amethyst saves the Frog Prince.
The seventh animated short, when Amy/Amethyst restores Prince Topaz to normal. Sure the goofiness is still being played up to eleven, but still. A nice little happy moment.