Brides of BostonAt Freedman Jewelers, March Madness has nothing to do with NCAA basketball. It’s when the 67-year-old Boston jeweler (pictured) hosts its three-day wedding band and engagement ring trunk show, an annual event that accounts for an astonishing 25 percent of band and 10 percent of engagement ring yearly sales. This March, the 10th edition, shoppers saw as many as 60 additional pieces of inventory from each of seven different lines—Novell Design Studio, Lieberfarb, Coast Diamond, Jolie Designs, Endless Designs, Frederick Goldman, and Gabriel & Co.White tungsten band with matte center and polished edges; $339; Triton, New York City; 800-221-3232; tritonjewelry.com“Typically, we have anywhere from 10 to 40 pieces from each company in-store,” says chief marketing officer Josh Freedman, who sets up four different stations of five cases, making room for extra bridal by