The actress hopes that the ring will also act as a wedding band if plans for them to marry in February go ahead, according to the Daily Star Sunday.
A source said: "The band has each of their children's names on it and Angie's on the top. This is a family wedding band to symbolise Brad isn't just married to Angelina but to the family as a whole. It was described as absolutely exquisite.
"She told me there are mystical references to his 47th birthday that have also been engraved on the band and the family all have their own interpretations of what the band means to them and what 47 means to them."
Jolie will apparently throw a party for Pitt at the couple's home, where the whole family will present him with the ring.
