Martin Del Bonta, a native of San Francisco, started in the jewelry business in 1939 after graduating from Galileo High School. He apprenticed with Marten E. Martensen, an established jewelry manufacturer, who did trade work for many fine stores, including Gumps. "Marty" learned the trade well, and after serving three and a half years in the US Army Air Corps during WW2. He returned to his old job with Mr. Martensen He established his own business at 209 Post St. in 1951. With the help of his family, he became one of the most respected manufacturing jewelers in San Francisco, specializing in repairs and alterations. Martin passed away on April 20, 2011.
"Marty’s" three sons grew up in the business with his oldest son Dan joining the firm full time after college. Dan is an accomplished magician and has been involved with many magic groups, particularly the IBM—the International Brotherhood of Magicians and is a member of the prestigious Magic Castle in Hollywood and The Society of American Magicians. Dan has acquired his father’s true love of the jewelry business. Bob, now retired, worked part time while at UC Berkeley (Class of 1971) and came on board full time after receiving his Ph.D. at the University of Michigan in South Asian Art History. He still uses his skills as writer, lecturer and curator at many venues such as the Asian Art Museum. He also is an established opera critic, writing for the German monthly opera magazine Das Opernglas. Now Bob is very active with the Museum and other related things in the field. Bob’s twin brother, Bill, also worked with the family while at UC Berkeley (Class of 1971) and while he taught school in San Francisco before moving to the Elk Grove area in the mid-80s. He is now Principal at Harriet Eddie Middle School in Elk Grove.
Del Bonta Jewelers is a well established DESIGN and SPECIAL ORDER Company and is noted for restoration of heirloom jewelry as another phase of the business. The Company currently celebrating over 62 years of business, servicing many fine stores and private clients. It has created thousands of engagement rings, and even though it specializes in diamonds and pearls, it has access to jewels from all over the world.