<http://schema.org/mpn>
"DD-103391686000"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.samuelsjewelers.com/1-3-8-carat-t-g-w-aquamarine-and-1-6-carat-t-w-diamond-10kt-white-gold-fashion-pendant.html>