Ruby 3mm Faceted Round - 15 Inch 4mm Blue Matrix siderophyllite

siderophyllite

green and brown to the more rare violet and pink

Everything you loved about Blood Quartz is magnified in the A-Grade version of the material

red and brown

Distinctive for its purple-and-gray tones

Ruby 3mm Faceted Round - 15 Inch 4mm Blue Matrix siderophylliteRuby 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