When shopping for an engagement ring, couples often face a choice between a recognizable designer ring from brands like Tiffany, Cartier, Verragio, or Tacori, and a custom-built piece. While designer rings carry prestige and a signature look, custom rings allow for greater control over proportions, materials, and cost, according to Carl Blackburn, owner of C. Blackburn Jewelers in La Jolla.
Blackburn notes that many clients are drawn to the aesthetic of a designer ring, but once the design is separated from the brand, custom options become appealing. The goal of custom work is not to copy a designer ring, but to capture the client's favorite elements—such as a vintage detail or a halo setting—and create a unique piece. For example, a halo can be made more delicate, a setting lowered for everyday wear, or the center stone changed to a different shape.
To address concerns that the finished ring may not match expectations, Blackburn's studio uses a detailed design and approval process. After an initial consultation and selection of gemstone and metal, a three-dimensional CAD model is created. Clients can view the design from every angle, see a 360-degree video, and request revisions. A full-size resin prototype is then produced so clients can try on the ring before it is cast. "The resin model is really where the guesswork disappears," Blackburn said. "You put it on your hand and you know." After approval, the ring is cast, set by hand, polished, and engraved, with production taking two to three weeks.
Diamond sourcing is another area where custom work can offer savings. Blackburn, a second-generation jeweler with over 30 years of experience, leverages relationships with diamond cutters, wholesale suppliers, and estate specialists. For a natural diamond of comparable grading and size, buyers often spend 15% to 30% less than at a designer boutique. On stones over two carats, the difference can be thousands of dollars. Lab-grown diamonds can reduce costs even more, commonly costing only 5% as much as natural diamonds of similar quality, allowing clients to choose a larger stone or upgrade to platinum.
Custom work is not necessarily cheaper, but it allows clients to direct their budget toward the diamond, materials, and craftsmanship. Blackburn emphasizes, "Custom should not be thought of as the bargain version of a designer ring. The better question is what you receive for the same total investment." Custom design also enables projects like incorporating stones from family heirlooms or reconstructing damaged pieces.
As an appointment-only studio, C. Blackburn Jewelers provides direct access to the designer, with a 5.0-star rating on Google and Yelp. For Blackburn, neither option is universally better: a designer ring is worth the premium when the brand and signature design are key; a custom ring is ideal for those valuing individuality and control. Couples can book a complimentary consultation at 864 Prospect Street, Suite A, La Jolla, California 92037, or by calling 858-251-3006.


