Blumenthal Jewelers-close-knit team of jewelry professionals provides fine creative craftsmanship, distinctive jewelry designs, diverse designer jewelry collections, loose diamonds, and jewelry appraisal and repair to clients in San Diego, California, and internationally. What can 30 years of experience in the jewelry business do for you? We provide you with the best in custom jewelry making and design. We offer the most exclusive jewelry collections and quality loose stones, including diamonds and all colored stones, at our retail location. We restore, repair and appraise your precious jewelry, whether a family heirloom or a more contemporary piece. Tues-Fri:10am-6pm; Sat:10am-5pm .