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That rock is blinding!

Mary-Kate Olsen attended the Louis Vuitton ready-to-wear Fall Winter 2014/2015 fashion show in Paris today with her sister Ashley, and the mini mogul wasn't making any effort to hide her giant engagement ring!

We guess that pretty much confirms the happy news for us!

Although the couple has yet to release a statement, rumors swirled last week that 44-year-old French banker Olivier Sarkosy had popped the question to the fashion designer and she accepted the proposal. Not after rejecting him the first time he asked, though!

"He tried about a year ago, and she wasn't ready. She didn't need to be wined and dined. She wanted to make sure he would be good to her," a source tells Us Weekly.

It sounds like she has nothing to worry about, either!

"Mary-Kate's family thinks Olivier is the best thing to happen to her. They love him," a source dished to Us Weekly.

The pair are reportedly "talk about trying to get pregnant" as well!

Michelle Tanner is going to be a Mrs….. and maybe a mother!