Gold may have spiked in price, but a few retailers seem to have missed that memo. See who’s selling gold jewelry despite its cost and learn how you, too, can keep the yellow metal moving.In March 2011, a longtime client came to Barton-Clay Fine ­Jewelers in Mountain Brook, Ala., after a trip to Las Vegas. Instead of table winnings, however, she brought back a cellphone photo of a heavy, unbranded gold and diamond bracelet that she'd seen at a store on the Strip. "She wanted to know if we could get one similar to it," explains ­Alison Freeman, a sales associate who had previously sold the 4