Jewelry loses shine mostly due to daily residue, not wear. To clean it safely at home, mix lukewarm water with a few drops of mild liquid soap. Soak your jewelry for 10 minutes, then gently brush using a soft toothbrush, focusing on edges and settings. Rinse with clean water and pat dry with a microfiber cloth. Avoid toothpaste, harsh chemicals, or rough cloths, they cause micro-scratches that dull the finish over time. Regular gentle cleaning keeps jewelry looking new without weakening it.