The Star Sapphires are one of the seven Corps empowered by a specific color of the emotional spectrum within the DC Universe. Though their roots can be traced back to the earliest appearances of the Star Sapphire queens, they've entered into a significant plot role as part of the 2009-2010 Blackest Night crossover event. First formed by the Zamarons at the conclusion of the Mystery of the Star Sapphire storyline running in Green Lantern vol 4., issues #18-20 (May-July 2007), their abilities come from violet power rings which wield the power of love. At present, members of the Star Sapphires have only been depicted as being female. During the Blackest Night panel at Comic Con International 2009, Geoff Johns explained that: "anyone can join, but most men are not worthy." The Star Sapphires are first mentioned in the context of a group during a conversation between Carol Ferris and Hal Jordan immediately after Ferris has just recovered from been possessed by the Star Sapphire stone during Mystery of the Star Sapphire. Ferris explains that while under the possession of the stone, she learned a number of things about its history and capabilities. She says that it told her that billions of years ago, when the Guardians of the Universe decided to form the Green Lantern Corps, a tribe of women left Oa because they didn't agree with the Guardians' belief in living a life without emotion. They said they would continue on their own existence living with emotions, starting with love. They searched the universe for billions of years for the thing the Guardians feared, and eventually found it on a planet called Zamaron. They learned of love from the first Star Sapphire gem, which was discovered locked between the embrace of two crystallized skeletons inside a cave. She explains to him that despite the fact that he had been able to defeat the various incarnations of the Star Sapphire he'd encountered up until then, other Green Lanterns had not been as fortunate. She describes another Star Sapphire falling in love with a Green Lantern and encasing his world in violet crystal so that the two could be together forever. She also mentions that the Star Sapphire gem is like the green power rings used by Green Lanterns and the yellow power rings used by Sinestro Corps members. After this exchange, Jillian "Cowgirl" Pearlman (being possessed by the Star Sapphire) attacks the two. Jordan uses his ring to grant Ferris enhanced abilities needed to help fight Cowgirl. The two fight with the Star Sapphire and she is defeated by their combined efforts. An energy vortex opens in the room and a voice is shown as saying that "a new Corps is rising and so must ours." Four Zamarons step out of the portal, and one announces that both Cowgirl and Ferris will become the first two members of their Corps. Jordan tells Ferris to attempt to remove the Star Sapphire from Cowgirl while he confronts the Zamarons. Though she is able to do so, the stone immobilizes the two Earth women while the Zamarons gain the upper hand over Jordan. The stone asks Jordan which of the two women he desires most, and that the woman he chooses will be able to be with him forever. In response, Jordan kisses one of the Zamarons, convincing the stone to release its hostages and possess her instead. The stone reacts with its new host violently, prompting the Zamarons to retreat with her to their home planet to remove the star from their ally and discuss the gem's future. At the end of the final issue in the storyline, the Zamarons are shown to have removed the Star Sapphire from their sister-in-arms at the cost of her life. The Zamarons agree that Jordan was right in showing how the Star Sapphire's power is too overwhelming to one host. The farther from the center of the emotional spectrum, the greater the influence a powered light has over its bearer (a plot element which would again become significant at the opposite end of the spectrum with the Red Lanterns). The Zamarons claim they could rectify the problem by taking a page from the Book of Oa. They are shown transforming the Star Sapphire into a violet power ring which they place on a pedestal along with a violet power battery. In discussion, they also describe how they'd been focused on love so long that they were almost like the emotionless Guardians. Depicted in the same room as the violet ring and battery, are a green and yellow set of powers rings and power batteries. Upon revealing this to the reader, the Zamarons comment that they "must collect them all." Just as the Green Lanterns and other Lantern Corps recharge their own rings, the following is the oath used by Star Sapphires to recharge their violet power rings: “For hearts long lost and full of fright, For those alone in blackest night, Accept our ring and join our fight, Love conquers all-- With violet light!” Choose either a right or left hand ring, uniform, boots, gloves, collar, and head piece along with lantern ring powers. Blackest Night has come…I will be created ALL of the corps uniforms and powers in the near future…PREPARE TO CHOOSE A SIDE!!