Keep it Clean: Regularly clean your gold vermeil jewelry to remove oils, dirt and sweat, which can cause it to look dull. —Use a soft, lint-free cloth or a microfiber cloth to gently wipe the jewelry. Be gentle when cleaning and avoid abrasive materials and toothbrushes  that can scratch the surface. 

Limit Moisture Exposure: Moisture and humidity can lead to tarnishing or damage to the gold plating. Store your jewelry in a dry place and avoid wearing it in humid conditions. —If your jewelry does get wet, make sure to thoroughly dry it with a soft cloth. 

Store Properly: When you’re not wearing your gold vermeil jewelry, store it in a cool, dry place. You can use anti-tarnish pouches or cloth to help prevent tarnish. 

Re-plate as Needed: Over time, the gold plating on vermeil jewelry may wear off. If you notice the silver base metal showing through or the jewelry losing its luster, consider getting it re-plated by a jeweler. 

Wear Your Jewelry: Like with silver jewelry, wearing your gold vermeil jewelry regularly can help maintain its appearance, as the natural oils on your skin can provide a protective layer. 

Avoid Excessive Friction: Be mindful of excessive friction or contact with other hard surfaces, as this can cause the gold plating to wear away.