And she didn't tell the world about it. The end.
For those who do require more details, her "ring designer" dutifully announced the news, after the rings he designed pretty much announced the news themselves at The Oscars on Sunday.
Jeweller Jamie Wolf - a dancer friend (but obviously not that good a friend) of Benjamin Millepied (brilliant name, I keep seeing his many egs tap dancing furiously) - told Us Weekly magazine: "I designed the rings worn by Benjamin Millepied and Natalie Portman. They were made with recycled platinum and conflict-free diamonds."
Jamie also designed the 30-year-old actress' engagement ring - an antique diamond "surrounded by conflict-free stones and made of recycled platinum" - and previously revealed the 34-year-old dancer was determined to ensure he got 'everything right' about the band: "Ben was exceptionally thoughtful and dedicated and patient to make sure we had everything right. We wanted everything about the ring to speak to things that are important to Natalie." Namely conflict-free stones and recycled platinum.
The pair got engaged in December 2010 before welcoming their son Aleph last June.
Speaking of which, anyone feeling frisky today? My sister popped the question at her beloved this day twelve years ago (eeeeeeeep) and things are still going strong...