The best way to care for emerald jewelry is to keep it away from harsh chemicals like perfume, lotion, and cleaning products, as these can dull the stones over time. A soft jewelry polishing cloth works well for everyday upkeep, but if a piece needs more attention, mild soap and warm water with a soft cloth does the job, just make sure it's fully dry before you put it away. Store pieces separately so they don't scratch each other, and take them off before the pool or beach.