Custom jewelry designer, engagement ring specialist, and luxury watch buyer at 864 Prospect St Suite A on La Jolla's Prospect Street, 92037. GIA-trained designer Carl Blackburn anchors the western end of Prospect's jewelry mile, with CJ Charles Jewelers at 1135 holding the center and carrying the corridor's deepest authorized Swiss watch collection. Blackburn specializes in custom engagement rings and fine jewelry set with diamonds and colored gemstones, alongside estate pieces from Cartier, Harry Winston, Tiffany, and Van Cleef & Arpels. Also one of San Diego's top buyers of pre-owned Rolex, Patek Philippe, and Audemars Piguet watches. Couples who want the stone appraised independently before setting walk to La Jolla Gem Appraisal on Fay Ave for a GIA-certified valuation. Walk-ins welcome; appointments available.