Myanmar (Burma), Thailand, India, Sri Lanka (Ceylon), Tanzania, Afghanistan, Australia, Brazil, Cambodia, Malagasy Republic, Malawi, Pakistan, Zimbabwe (Rhodesia), United States (Montana, North Carolina).
Sapphire is occassionally found with such color-zoning, that the crystals make interesting bi-colored gems.
Bi-color sapphire is always heat treated to produce, intensify or lighten color and/or improve color uniformity and appearance.
Bi-Color Sapphire is a member of the Sapphire gemstone family.
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