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Rubies.. The Science behind the Beauty

Rubies are one of the most desired gemstones of the world.  They are part of the corundum family.  Rubies are ALWAYS red; any other color of corundum is considered to be a sapphire.  Their red hue is due to the presence of chromium within the crystal structure.  The most pure, vivid reds demand the highest prices.  Rubies have the potential for a variation called asterism, which is also known as a “star.”  These can be 3 or 6 point lighter colored stars within the stone that move with the viewer.  Star rubies are cut into a cabochon shape with a smooth, domed top that displays the brilliance and movement of the glowing design within.  Rubies can be cut into nearly any shape to suit a designers needs or a consumers wants.  When investing in a gemstone, the purchaser should always go with the stone that appeals to them the most especially in color.