Ruby 4mm Microfaceted Round A Grade - 15-16 Inch Dakota Stones It is best known for

It is best known for its characteristic deep blue to violet-blue color

The name derives from “cuprum

blue or gray

milky white and clear

and typically appear in light yellow-green to blue-green to deep moss green

Ruby 4mm Microfaceted Round A Grade - 15-16 Inch Dakota Stones It is best known forRuby is a precious gemstone known for its deep red color. It is a variety of the mineral corundum, the second hardest mineral next to diamond . The presence of chromium is what gives a ruby its red color. Trace amounts of iron can also affect the hue, giving some rubies a slightly brownish or purplish tint. Ruby has long been considered one of the most beautiful and valuable gemstones on the planet. At times in ancient history, Ruby was valued more