How to Clean Jewelry at Home:   You don’t need fancy jewelry cleaner to get your silver to sparkle, your gold to gleam, and your gemstones to shine. Try these trusted everyday items, most of which you probably already have in the house.   Alka-Seltzer Drop your dull-looking jewelry in a glass of fizzing Alka-Seltzer for a couple of minutes. It will sparkle and shine when you pull it out. Aluminum foil Simply line a small bowl with aluminum foil. Fill the bowl with hot water a