Silver jewellery naturally tarnishes over time due to exposure to sulfur, moisture, and personal care products, resulting in a black coating called silver sulfide. This is a sign of genuine 925 silver, not fake metal. Cleaning tarnished silver at home is easy using a simple method with aluminum foil, baking soda, and hot water, while proper storage, regular polishing, and anti-tarnish strips can prevent discolouration. Occasionally, silver may turn green or red due to reactions with copper or specific chemicals. At Smith Jewels, all jewellery is crafted from hallmarked 925 sterling silver, ensuring authenticity, durability, and elegance for years to come.