Color Change Sapphire 10x7mmDescriptions Color Change Sapphire is a rare, phenomenal gem that changes color when exposed to different types of light. Mostly mined in Tanzania, Madagascar, Sri Lanka and Montana (USA). They are durable gemstones with a hardness of 9 on the Mohs Scale and can easily be used in all types of jewelry. Please refer to the features below for more information about this stone. The most significant changes in color are from florescent light (blues,
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