To use this necklace set, you can simply put on the two necklaces and layer them as you like. They look great when worn together, but you can also wear them separately for different looks. When it comes to care, avoid wearing the necklaces when swimming or doing strenuous activities as this can damage the gold plating and the stones. To clean them, use a soft, dry cloth to gently wipe off any dirt or fingerprints. Store the necklaces in a jewelry box or a soft pouch to prevent scratches and keep them in good condition.