Specializing in Diamonds, Antique & Estate Jewelry since 1906
Our journey began in 1906, when Bernard Nacht opened his business in Lower Manhattan. Today, 119 years later, Under the Crown® remains a fourth-generation family business, specializing in antique, vintage, and estate diamonds and jewelry for the trade.
We serve as a trusted resource for dealers, stores, and designers worldwide, always seeking fresh and unique treasures to be reloved and reimagined in today’s world. We look forward to discovering our next exceptional find with you.
A curated collection of pre-owned, one-of-a-kind engagement rings. Each ring showcases distinctive styles and motifs from the Victorian, Edwardian, Art Deco, Retro, and Modern eras.
Our proprietary Crown Jubilee® cut transforms reclaimed antique and pre-loved diamonds and gemstones into table-less stones with delicate floral facets that converge to a subtle point at the top. Each stone is GIA-graded and accompanied by a GIA Diamond Report.
OA distinguished collection of pre-owned watches, featuring Patek Philippe, Rolex, Cartier, Audemars Piguet, Blancpain, Boucheron, Omega, Hamilton, Vacheron Constantin, and other unbranded timepieces from all periods.
Often, diamonds are not set in their original mountings. A diamond in a ring can predate the setting; family heirlooms are often reset into a different or more modern setting. For example, an old mine cut diamond from 1880 could be reset in a 1950’s fishtail mounting.
DocuJewel® provides a detailed description, history, and photograph of each Under the Crown® piece. It serves as a key point-of-sale reference, helping associates accurately describe each item while assuring customers of the piece’s authenticity and provenance.
n the mid-to-late 1800s, Fortunato Pio Castellani created jewels inspired by Ancient Etruscan designs, emulating motifs from the early Roman Empire (circa 300 B.C.). Each piece is an original Castellani® design and bears the Castellani® nameplate—a back-to-back C hallmark within a diamond shape.
Carlo Giuliano® was a renowned jeweler of the late 1800s who trained under Castellani before establishing his own workshop in London. He became celebrated for his exquisite enamel work and exceptional craftsmanship.
