Morganite has been treated to permanently create its color. Gently clean by rinsing in warm water and drying with a soft cloth and avoid heat.
Sapphire is commonly subjected to enhancement processes or treatments such as heating and diffusion. Gently clean by rinsing in warm water and drying with a soft cloth.
The amethysts pictured may have been treated or enhanced by heating.
Tourmaline is commonly subject to heating and irradiation and enhancement processes using wax, oil or resin, which may not be permanent and may require special care. Gently clean by rinsing in warm water and drying with a soft cloth. Avoid temperature changes, chemicals, steaming and ultrasonic cleaning.