Watch for photos of Mary McCartney and you'll see that she often wears a princess length M pendant necklace. The necklace is simple, it's a classic style, and it looks good with every ensemble I've seen her photographed in, from casual to dressy.
Mary McCartney "M" Pendant
From Carly Wickell, About.com
Guide to Necklaces
Photographer Mary McCartney arrives at the Electric Ballroom to attend dad Paul McCartney's performance - June 7, 2007
Dave Hogan / Getty Images©2009 About.com, a part of The New York Times Company.
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