Key Highlights
- Miley Cyrus and Maxx Morando are engaged after four years together.
- Cyrus showcased her engagement ring at the December 2 premiere of 'Avatar: Fire and Ash.'.
- The ring is a cushion-cut diamond set in a chunky 14-karat gold band.
- Maxx Morando's father reportedly announced the engagement on social media.
- Cyrus expressed her surprise at maintaining privacy in her relationship.
