Sterling Silver Lab Created Blue Sapphire Round 7mm Blue Sapphire .01 Carat Diamond Weight Diamond Ring - in Sterling Silver - - - [ Care and Handling: diamond ] - Clean with warm soapy water and a soft brush or cloth. - - [ Potential Enhancement Methods: blue sapphire ] - Usually heated to improve appearance. Occasionally irradiated. Commonly diffused along with heat application to create different colors. Yellow sapphire is always diffused. - [ Care and Handling: blue sapphire ] - Avoid strong detergents, heat, pressure and ultrasonic cleaner or steamer. Avoid re-polishing or re-cutting of the stone. Color may fade in light or with heat. Clean with warm soapy water and a soft brush or cloth. -