It can be turned into a scepter that Stella usually uses to help cast spells, or teleport herself and other people to a certain place. According to Stella, the ring is made of 6.1 pure magic.
It is cyan blue. When it is in its ring form, it is a ring with a sun-shaped circle. Same goes with the scepter form, except it is now much bigger and instead of the ring there is long staff with the sun-shaped circle being on its top.
The base is cyan blue. It has six orange jewel spheres on top - one in a middle and other five around it forming a pentagon. While transformed in a scepter it has a cyan blue sphere on top of it, but instead of the big wheel alike ring around it, it has six orange jewel spheres, once again - one in a middle and five around it forming the pentagon. On outside there's also five small spheres attached to the bigger ones.
Chimera's scepter is different. It is a purplish, darker version of Stella's Scepter that's shaped like a diamond with a purple jewel.
It is a part of the lineal right of the Princess of the Sun and Moon of Solaria and has been in the royal bloodline of Solaria since forever. It was forged so long ago that no one remembers when. It was carved out of a stone, immersed in the Spring of Light which still flows in the universe. The ring was also considered as one of the most precious gifts offered by the Dragon Flame.
Mostly used on the firsts episodes to illuminate dark places, defeat two monsters, help plants to grown as well as to teleport them two times.
In "Magic Bonding", it is explained to Sky that Stella must know the location they wish to be teleported very well, otherwise they might end up anywhere.
Stella used the Ring of Solaria in the eighth episode of Season 3. She used it to defend her father, Radius. Stella sacrifices her life for him and earns her Enchantix. Stella doesn't use her ring as a weapon much anymore after receiving her Enchantix, but she still did use it to teleport the team to places like Andros and Linphea. It is unknown where she keeps her ring during present time, but it is possible it is kept at Solaria or in her jewelry box.
In "The Castle," Stella transforms her ring into its scepter form, uses it to transport Mike and Vanessa back to their home, and reverts it to its ring form. Later, Stella manifests her scepter but it is snatched by Knut, which he then gives to the Trix. Bloom is able to recover it but Icy freezes her and the scepter in ice. She is able to break free and return it to Stella.
In "A Friend for Bloom," in a flashback to past events, Stella uses her scepter against Knut and his ghouls in Gardenia Park, which Knut then steals as his ghouls restrain her, but she is able to recover it by punching him. Later, she uses it against Knut, his ghouls, and the Hunting Troll in Bloom's house. The next day, she uses it to transport herself, Bloom, and her parents to Alfea.
In "Prisoner of the Dark," the ring can be seen on Stella's finger.
In "The Swamp Monster," Stella is seen with it before the Winx converge against the Swamp Monster.
In "The Revelation," Stella uses it against the monster.
In "Magic Battle," Stella carries the scepter with her throughout her journey underground Cloud Tower. Later, she uses it to give Bloom and Sky Wind Rider outfits. Afterward, she carries it during the battle at Alfea.
In "The Ghost of Balmoral," Stella uses the scepter to furnish and decorate Bloom's room. Later, she uses it to reveal a hidden door.
In "The Wizard Kamud," Stella uses it to cast Power of Light twice against Kamud's army of troll slaves.