_:ne4d4744edfc943aa81b409aff7184798xb0
<http://schema.org/description>
"<p>Mystery Set™ is a Van Cleef &amp; Arpels technique, patented by the Maison in 1933. This innovation enables stones to be set in such a way that no metal prongs are visible.</p>\r\n"
<https://www.vancleefarpels.com/jp/en/the-maison/videos.html>