Could one of the Olsen twins be getting married? That’s the latest from Page Six over at the New York Post. The 27-year-old twin sister of Ashley was spotted shopping for an engagement ring during a recent trip to Los Angeles, the publication reports.

“Mary-Kate has been seen several times in the last three weeks checking out huge engagement rings at the Neil Lane store,” a source tells Page Six. The fashionista and runway designer prefers “cushion-cut diamonds,” the source continues, and has been looking exclusively at rings that “are over five carats.”

Mary-Kate has been dating 44-year-old Olivier Sarkozy for more than a year; her banker boyfriend, who is the half-brother of former French president Nicolas Sarkozy, isn’t said to have joined her in her tour of bling. We hope he’s at least aware his girlfriend has marriage on the mind since it sounds as if the ring might come with a high price tag.

“I don’t think price was an issue,” the Page Six insider says, saying Mary-Kate looked at platinum-setting rings with some priced at more than $100,000. “She has narrowed it down, but still hasn’t made a final decision.”

A rep for Mary-Kate hasn’t commented on the news nor has a rep for Neil Lane, but if the news is true and Mary-Kate is getting engaged, how oversized do you think her wedding dress will be?

Source: Page Six

Elisabeth Kramer is an Assistant Editor at Wetpaint Entertainment and our resident Downton Abbey expert. Follow her on Twitter and Google+!