Lighting Effect on Tanzanite loose sale price & Tanzanite Gemstone Information
Sunlight At midday, it normally has a neutral effect on the hue. Earlier andlater in the day, it adds red, orange, or yellow making the stones look more purple.
Light bulbs & candlelight Add red. Purple colors are strengthened, blue may turn violet to purple, and grayish colors may look brownish. The degrees of change varies depending on the stone. Some show little change.
Flourescent lights Depends on what type they are. Most strengthen the blue in tanzanite.
Halogen spotlights Add sparkle and usually make stones look more purple. The color change is usually less than with light bulbs.
Light under an overcast sky Adds blue and grey.
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Swiss Gem Shop loose Gemstone at Sale price and Gemstone Information