Ruby 2x3mm Faceted Rondelle A Grade - 15-16 Inch Mixed Moonstone a Venetian monk tipped molten

a Venetian monk tipped molten copper into a vat of molten glass

Iolite most commonly occurs in shades of blue-gray

making it the hardest silicate mineral

yellow and brown

Ruby 2x3mm Faceted Rondelle A Grade - 15-16 Inch Mixed Moonstone a Venetian monk tipped moltenRuby 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