The ruby is the most noble monocrystalline variety of thealuminum oxide(AL2O3), amineralknown ascorundum, Strongly allochromatic.
It has hardness 9 in theMohs scale
Color: bright red
Technical characteristics of the ring
18kt white gold
Brilliant cut diamonds CARATO 0.43 Color F Purity YES
Ruby cut oval carature 1.16
