Welcome to Union Street Jewelers & Diamond Brokers of San Francisco!
Since opening our first store in Los Altos, California, in 1976, our Consultants have been committed to our customers’ (family) needs, collaborating on products from world-class designers, Appraisals, Repairs, and Custom Design, to capture, visualize, mock up and realize their ideas and needs.
Finding or creating jewelry for customers at the best price is our goal; we have proudly served customers with a global inventory of GIA certified diamonds and jewelry at brokerage+ prices since 1979.
As a Diamond Brokerage, we can help you sell, consign or upgrade your GIA diamonds, stones, jewelry and gold at unbeatable prices; we offer a full set of expert services including appraisals, repair, polishing and sizing. You may return items purchased within 15 days in original condition for a full refund. Rings purchased from us come with a lifetime warranty! Come visit us in San Francisco or in our Los Altos store, Diamond Brokers of Los Altos.