Store silver jewelry in a protective pouch or box away from light and air to prevent tarnishing. Remove all jewelry when doing cleaning, home repairs, or activities involving chemicals or heat like swimming or saunas, as these can damage the metal and gemstones. Gently clean silver jewelry with mild soap and water, using a soft toothbrush if gemstones are set, and dry with a jewelry cloth instead of paper towels to avoid scratches. Hardness is measured on the Mohs scale, with diamond being the hardest at 10 and talc the softest at 1.