This lovely Colors in Rhythm mother's necklace features two hearts, one representing the mom's birthstones that shimmers as it moves and the other holds her loved one's birthstones. You may personalize by engraving that special sentiment. Diamond accents complete the look. Most natural gemstones pictured have been subject to an enhancement process or treatment (e.g. heating, oiling, diffusion, waxing, etc.), which may not be permanent and may require special care. Generally, most treated gemstone jewelry should only be gently cleaned by rinsing in warm water and dried with a soft cloth. Please refer to the FAQ section below for more information about gemstone enhancements and special care recommendations.