0.69 ct Natural Star blue Sapphire cabochon loose gemstone

This beautiful blue gemstone is a natural earth mined and genuine Star Sapphire loose gemstone, this rare Star Sapphire comes from Thailand, where it was genuine earth mined from the ground, shaped and polished into a classic oval cabochon that display a nice rare asterism optical effect, with a six rays dancing star on the gemstone surface. This Sapphire precious stone display an attractive electric blue color hue, medium dark tone, strong color saturation and nice translucent clarity. This awesome rare natural blue gemstone is totally untreated, so any heat or other process was applied to this precious stone. This blue six rays Star Sapphire is one of the four most rare and valuable precious stone, good for jewelry duo to its high hardness, perfect to be set into a jewel.