Background (see https://greenlantern.fandom.com/wiki/Emotional_Spectrum#Violet.2FLove):

Violet is the other color furthest from the center, and represents the emotion of love. Those who are capable of great love, who have lost their loves, or been rejected are capable of wielding the violet light. The Zamarons believed that the male Malthusans' rejection of emotion was tantamount to blasphemy, and left Oa. Traveling across the universe, they found two crystallized corpses of a male and female embracing each other. Between them was a crystal known as the Star Sapphire, an object filled with the violet light. Unfortunately, the Zamarons interpreted the best way to spread love throughout the universe and destroy hate and fear was to use the Star Sapphires to crystallize whole worlds and trap their inhabitants. Worse, the Star Sapphire was a parasite that overrode the host's will and compelled them to attack the objects of their affection, as well as display an intense fear of men. Those wielding the Violet light may show others their destined loves via a Star Sapphire they possess, and create constructs out of Star Sapphire crystals as well as energy.