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(There is also genuine color-change sapphire which mimics alexandrite, as well as color-change garnet that can be a real fooler.). The first thing to do is check the refractive index of the stone, since each material has unique optical properties.
Each sapphire uses the preface of its color for the name so you have the yellow sapphire, blue pink, purple, green, white and orange sapphire and the red sapphire is of course called as Ruby. One of the most exotic sapphires that come in orange-pink shade is called as Padparadscha sapphire.hese are the most popular of all sapphires and sapphires are synonymous with those having the blue color. That is why these are often known only as sapphires without any preface for its color. The finest of these come from regions of Mogok in Burma, Sri Lanka and also the Kashmir area in India.