Lab created Blue Sapphire with beautiful deep cobalt blue colors and hues. Each stone is identical to those found in nature by chemical make up and performance at the bench.
Sapphire is the birth stone of September
Mohs Hardness: 9
Refractive Index: 1.76 - 1.77
Specific Gravity: 4
True color of the gemstone may vary from photos displayed depending on display settings and lighting environment.