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This diamond selector doesn't react on stones like fake crystals, or simulants such as cubic zirconi..
This Chelsea Filter is designed to transmit only deep red and yellow-green light (best obtained ..
Ruby Filter is a filter that is extremely useful in differentiating red stones such as Ruby, Spine..
It is a sure way to tell the difference between diamonds and moissanite (man-made diamonds). Th..
This tester is designed to distinguish diamond, moissanite from other fake stones quickly. It has fi..
A handheld spectroscope for visible light shows the absorption lines of the elements involved in p..
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