A faceted sapphire gemstone, known as Oriental Amethyst' due to its purple colour, set in a ring. Close examination shows that the sapphire is actuall

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A faceted sapphire gemstone, known as Oriental Amethyst' due to its purple colour, set in a ring. Close examination shows that the sapphire is actually blue and red.

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Size: 2894px × 3443px
Photo credit: © NATURAL HISTORY MUSEUM, LONDON/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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