New York's premier manufacturing partner

For over two decades, Core Mountings has been a quiet force behind some of the finest jewelry in the trade. From our New York City workshop, we partner with independent jewelers, established brands, and designers seeking a manufacturer who treats every piece as if it were their own.

We pair time-honored techniques — lost-wax casting, hand stone setting, precision finishing — with modern CAD, high-resolution 3D printing, and rigorous quality control. The result is a full-service partner that scales from a single bespoke mounting to large-scale private label production without ever compromising on craft.

We're proud to be family-owned, made in the USA, and committed to ethically sourced materials. When you work with Core, you get a real team that answers the phone, respects your timeline, and obsesses over the details.