The fashion team at O is crazy about delicate pendant necklaces—they look gorgeous worn layered or alone. And this Me&Ro double heart piece is not only beautiful, it helps a very worthy cause: 100% of proceeds from sales of the necklaces benefit the Charlotte and Gwyneth Gray Foundation, recently founded by Hollywood producer Gordon Gray. He's raising money to find a cure for Batten's disorder, a fatal brain disease afflicting his daughters Charlotte, 4, and Gwyneth, 2. Celebs such as Julia Roberts (pictured here wearing the necklaces), Jennifer Garner and Julianne Moore have already lent their support; go to to see how you can too.

Me&Ro's Gray Foundation Double Heart Pendants, $100 (silver) and $650 (gold)


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