Ruby (Heated) 4mm Faceted Round - 15-16 Inch 8x10-10x12mm Some specimens of Fire Opal

Some specimens of Fire Opal produce iridescent flashes and are referred to as Precious Fire Opal or “Firmament Stone

Purple Garnet is a magenta to purple variety of the famous stone

These are sure to be a staple on your work bench

Natural topaz colors include rare and valuable yellow

Lapis was ground and processed to make the pigment ultramarine for use in frescoes and oil painting

Ruby (Heated) 4mm Faceted Round - 15-16 Inch 8x10-10x12mm Some specimens of Fire OpalRuby 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