A Vintage-Inspired Ring Made of 925 Sterling Silver Featuring a Glass Thermochromic Gemstone in size 6. The 9MM glass mood stone is bezel set in high-polished 925 sterling silver ring.The mood stone changes color with your body temperature and reveals your emotions. The bezel setting makes the gemstone stay in the ring firmly. Well-polished, curved and highly polished interior, makes the mood ring absolutely comfortable to wear. Care Tips--Every exquisite sterling silver rings needs to be cherished. To maintain and protect your sterling silver mood ring, avoid prolonged exposure to water, harsh chemicals, physical damage, and high humidity/heat such as leaving in sunlight. When the temperature is too high,the mood ring may stop changing color and stay blue. NOTICE: the function is still there, it will re-change when the temperature goes down. The ring in new, without defects and will include a ring box.