Description
Rubi is a red stone that rates 9 on the Mohs hardness scale. At is a variety of corundum and this is what gives the stone its red coloring. It is an expensive precious stone with a higher price for the quality of the cut and carat.
Rubi is a red stone that rates 9 on the Mohs hardness scale. At is a variety of corundum and this is what gives the stone its red coloring. It is an expensive precious stone with a higher price for the quality of the cut and carat.
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