
Diamond Banc Expands to San Diego
It’s official: Diamond Banc is growing its California footprint! We are thrilled to announce the opening of our newest office in La Jolla, marking an exciting milestone in our national expansion and a major step forward for our presence in the Golden State. Joining our Beverly Hills location, this new San Diego office reflects just how much momentum Diamond Banc is building on the West Coast, and we could not be more proud to bring our nationally recognized jewelry, diamond, luxury watch, and gold buying and lending expertise to one of California’s most sought-after luxury markets.
Diamond Banc is proud to announce the opening of its newest office, located in La Jolla and serving clients throughout San Diego County. The new location brings our full range of jewelry, diamond, luxury watch, and gold buying and lending services to one of Southern California’s most prestigious coastal markets.
The San Diego office is located at 4275 Executive Sq, Suite 202, La Jolla, CA 92037, and is open Monday through Friday from 9 AM to 5 PM. Clients can reach the office directly at (858) 391-4047 or by emailing sandiego@diamondbanc.com. To schedule a private consultation, book an appointment through our Calendly.
Meet Our San Diego Regional & Market Director, Thuyvi Tran, G.G.
Leading the new office is Thuyvi Tran, G.G., Diamond Banc’s Regional & Market Director for California. With nearly 20 years in the luxury jewelry, watch, and diamond industry, Thuyvi has built a career helping clients navigate meaningful financial and personal decisions. A Graduate Gemologist from the Gemological Institute of America and a UC Berkeley graduate, she combines technical expertise with a personalized, client-first approach trusted by collectors, executives, estate attorneys, and families.
Throughout her career, Thuyvi has launched and led luxury buying markets across California, mentored high-performing teams, and developed training and operational strategies that improve both the client experience and business performance. As Regional & Market Director, she supports Diamond Banc’s California offices while continuing to work directly with clients in her hometown of San Diego.
Thuyvi specializes in evaluating luxury jewelry, diamonds, fine watches, and estate collections, including pieces from Cartier, Van Cleef & Arpels, Tiffany & Co., Rolex, Patek Philippe, Audemars Piguet, Richard Mille, and many others.

A Refined Destination for San Diego’s Luxury Market
Our La Jolla office is designed to provide a discreet, secure, and refined environment for clients looking to sell fine jewelry or access asset-backed loans. The location reflects the sophistication of the clientele we serve throughout San Diego, from La Jolla’s Girard Avenue boutiques to the coastal enclaves of Del Mar and Rancho Santa Fe.
The San Diego office specializes in purchasing and lending against high-value assets, including:
- Rolex and other luxury watches
- Designer jewelry from brands such as Cartier, Van Cleef & Arpels, and Tiffany & Co.
- Loose diamonds and diamond jewelry
- Gold and silver
- Jewelry-secured loans
Who Is Diamond Banc?
Diamond Banc is a national leader in jewelry, diamond, and luxury watch buying and lending, with offices spanning coast to coast, including locations in Beverly Hills, Boca Raton, Miami, Aventura, Tampa, West Palm Beach, Orlando, Sarasota, Atlanta, Roswell, Kansas City, Columbia, St. Louis, Nashville, and Scottsdale. Since our founding, we have built a reputation for combining deep industry expertise with a discreet, client-first approach, helping anyone with jewelry, watches, or gold to sell or borrow against the value of their most treasured assets.
As a nationally recognized leader in purchasing jewelry and diamonds from the public, Diamond Banc consistently delivers industry-leading payouts. Our national footprint allows us to access elite buyers and collectors across the country, enabling us to pay more for diamonds, Rolex watches, gold, and fine jewelry than most local buyers or pawn shops.
Serving Greater San Diego County
The new La Jolla office proudly serves surrounding communities including Del Mar, Rancho Santa Fe, Solana Beach, Encinitas, Pacific Beach, Point Loma, Coronado, and greater San Diego County.
Clients can begin the process online through our secure submission form, schedule a private consultation, or visit our La Jolla office to discuss their item in person. Learn more about Diamond Banc of San Diego or get started with a complimentary, no-obligation value assessment today.


