555 E. Durant Ave., Aspen, Colo.For a town of only 6,500 full-time residents, Aspen’s jewelry scene is remarkably crowded. There are some 25 stores that feature fine jewelry, making the competition among local retailers fierce. But Aspen Jewel Box owner Sarah Hunt has found a secret for success: Her intimate, uncluttered boutique, located in the North of Nell Building on Durant Avenue, offers unusual yet sophisticated contemporary designs and timeless period pieces in a warm, inviting atmosphere free from the intimidation that can dampen the shopping experience at jewelry stores in a similar price bracket.LUXURY LOCATIONHunt opened Aspen Jewel Box in 2005 after a ­successful career in antique and period jewelry sales. Formerly located in a tiered courtyard near the west end of town, the boutique moved to the prime address of 555 East Durant Avenue, in the heart of Aspen’s downtown s