Lowest price:$29.99Description: 25.00ctw 10x8mm oval sky blue topaz. the name 'topaz' is likely a derivative from the ancient red sea island of topazos. it has a hardness of 8 and is found in an array of colors. blue topaz is one of the biggest selling gemstones in the united states. it occurs very pale naturally and is routinely heated or irradiated to achieve the level of color found in sky london and swiss blue topaz.
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