Natural Red Ruby 3-4mm Faceted Rondelle - 15-16 Inch 60-120mm improving concentration

improving concentration

with banding that creates vibrant landscape patterns throughout the stone

where it originated approximately 50 million years ago

but it is opaque as well

Natural Red Ruby 3-4mm Faceted Rondelle - 15-16 Inch 60-120mm improving concentrationRuby 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