This Charmed Memories® "Grandma" heart charm showcases round birthstones of the grandmother's loved ones. You may personalize by engraving a special sentiment on the back of the charm. 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.