Asscher Cut Diamonds Gain Popularity for Custom Engagement Rings in San Diego

Asscher cut diamonds are experiencing a resurgence among San Diego couples seeking a distinctive center stone for a custom engagement ring, according to Carl Blackburn of C. Blackburn Jewelers in La Jolla. The Asscher cut, characterized by its square shape with deeply clipped corners and broad step facets, creates a unique "hall of mirrors" effect that is more measured than the rapid sparkle of a round brilliant cut. Blackburn has noticed growing demand for these diamonds among clients who desire a ring with historical character but not necessarily an antique design. "An Asscher cut gives the entire ring a clear sense of structure," Blackburn said. "Its proportions and faceting can guide every other decision, from the side stones and prongs to the metal, gallery and band."

Carl Blackburn approaches each custom ring by first studying the center diamond, allowing its exact outline, corner proportions, table, depth, and reflection pattern to inform the surrounding design. Because the Asscher's large, open facets make its interior especially visible, clarity and precise cutting are paramount. Blackburn then decides whether the setting should extend the diamond's geometry or provide contrast. Step-cut side diamonds can continue the center stone's orderly reflections, while tapered baguettes or trapezoids create a gradual transition to a narrower shank. Brilliant-cut accents introduce livelier sparkle. The choice of metal also alters the Asscher's character: white gold or platinum emphasizes clean Art Deco geometry, while yellow gold adds warmth and makes the clipped corners more pronounced. Prongs and the structure beneath the diamond are carefully designed to protect the corners without obscuring the outline. An open gallery keeps a substantial stone from appearing heavy, and hidden diamonds or hand-finished metalwork add subtle detail.

The Asscher cut traces its history to 1902, when Joseph Asscher developed and patented the original design in Amsterdam. Its 58 facets, high crown, small table, deep pavilion, and cut corners set it apart. The cut became fashionable during the Art Deco era of the 1920s and 1930s, fitting naturally with the period's architecture and fashion. After a decline, interest returned near the end of the 20th century, and in 2001 the Asscher family introduced the Royal Asscher Cut with 74 facets. Blackburn believes the cut's adaptability between historical and modern design accounts for its renewed popularity. "The cut brings its own history and personality, but it does not dictate what the finished ring has to be," he said. "That leaves room to create something personal rather than simply reproduce a period style." To begin a custom engagement ring, call C. Blackburn Jewelers at 858-251-3006 or text Carl Blackburn at 619-723-8589.