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Gemstones are basically mineral crystals which have dazzling brilliance and unique shape. They were found and unearthed many centuries ago and ever since that time, they have maintained their position in the hearts of human beings. It is believed that gemstones possess healing powers. In ancient times, Kings and Queens used to wear them as talismans and amulets that helped in protecting them from ghosts and evil. During those times, gemstones were used only by the rich and royal class.
There are many types of gemstones available today. They are characterized as precious or semiprecious, organic or inorganic and natural or synthetic. Diamond, Ruby, Sapphire and Emerald are classified as Precious stones and all other gemstones are called semi precious stones. This classification was made during ancient times based on the rarity and quality of the gemstones.