Jewelers Help JapanWhen the Great Sendai Earthquake and subsequent tsunami struck Japan March 11, the American jewelry community responded quickly. These necklaces were made available within a week of the disaster.Designer Jane Taylor introduced the silver Rella (Sinhalese for “wave”) pendant on a black waxed cotton cord after the December 2004 tsunami in Sri Lanka. Sadly, it’s back in production in light of the Japanese tragedy, with 100 percent of the proceeds earmarked for recovery efforts; funds will aid the Japanese Red Cross through Google’s Crisis Response page. The pieces retail for $43 each, including shipping and handling. (Jane Taylor, Amherst, Mass.; 413-256-8404; janetaylor.com)Joan Hornig’s Wave of Help pendantThe Japanese-relief charity of the buyer’s choice receives 100 percent of the profits from Joan Hornig’s sterling ­silver Wave of Help pendant on a ste