Gemstones fall into 2 categories
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Precious gemstones: Diamond, Ruby, Emerald and Sapphire. These gemstones are in much higher
demand and carry a higher value.
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Semi-Precious gemstones: These include all the other colored stones. Some of the most popular are
Tanzanite, Garnet, Amethyst, Opal, Topaz, and Tourmaline.
Birthstones
They are comprised of both Precious and Semi-Precious gemstones: