Ruby

Lab created Ruby with striking regal red colors and hues. Each stone is identical to those found in nature by chemical make up and performance at the bench.  Ruby is the birth stone of July Color: Red Mohs Hardness: 9 Material: Corundum 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.