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Introducing

Single Stone

An esteemed collection of heirloom-quality fine jewelry that honors the captivating elegance of antique diamonds, seamlessly integrating vintage-inspired design with contemporary craftsmanship. Following a decade of meticulously sourcing vintage stones and restoring antique pieces, the husband-and-wife duo, Ari and Corina Madilian, unveiled their inaugural collection. This debut featured repurposed diamonds and recycled metals, each piece is meticulously handcrafted in Los Angeles. We are San Diego's exclusive jeweler for the Single Stone collections.

Custom Jewelry Design at Harold Stevens in San Diego, CA

Buying Antique Diamonds

Discover the unparalleled beauty of antique diamonds sourced from our extensive network of vintage dealers. From rare vintage cushions to old mine cuts and large old Europeans cuts, we have it all!

Re-Imagine & Re-Purpose

Custom Design Services

Whether you want to design your own engagagement ring, update a family hierloom or create a statement piece, our talented design team is ready to help bring your vision to life.