At Standard Assay, our curated online collections offer a glimpse into our world—but it’s through custom jewelry that our capabilities truly shine.

From expertly engineered engagement rings and tennis bracelets to sculptural links, statement necklaces, and bespoke pendants, our private offerings are built on trusted partnerships with leading CAD designers, master bench jewelers, and top-tier gemstone suppliers. We source only the finest GIA®-certified diamonds and rare gemstones, all set with precision in premium 14k and 18k gold and precious metals.

Headquartered in San Diego—home to the Gemological Institute of America® (GIA®)—our team includes a Graduate Gemologist® and a network of seasoned professionals. Our location grants direct access to elite manufacturing and wholesale resources.

From consultation to final creation, every custom piece receives meticulous attention, complete discretion, and a commitment to excellence. With Standard, your jewelry isn’t just made—it’s composed to fit your story, your vision, your Standard.