Triumvirate of Terror! - S3-E8
Continuity mistake: Back at their kingdom, Wonder Woman and her mom are sitting and talking as they watch the fighting before them. The mother turns her head towards Wonder Woman in a close up and says "Oh please. It's just one little contest." It then changes to a wide shot again and suddenly her mom is looking straight forward. (00:10:45)
Chosen answer: The Star Sapphires are agents of the Zamarons, the female species of the Guardians of the Universe, they are enemies of the Green Lanterns, which is why Carol has anger toward Hal. It should also be mentioned that the further a ring is from the center of the "The Emotional Spectrum", the more control the ring has over the user.
MasterOfAll