Nigerian Thermochromic Zircon 4.10ct 11x8mm Pear Shape. Gemstone Mined In Nigeria And Cut In Thailand. Please Use Every Precaution When Working With Heat. Caution: Prolonged Heating Or Exposure To Temperatures Above 500 Degrees Fahrenheit Will Permanently Destroy Thermochromic Property.
Nigerian Thermochromic Zircon
This exotic gem possesses one of the more interesting properties associated with minerals. Thermochromism is a temporary condition that occurs when certain gems are exposed to temperature changes, causing them to exhibit temporary color change. This chameleon effect can be observed after 20-30 seconds of heating your gem over a flame and can be repeated indefinitely, but may be weakened or destroyed if you overheat the gem. Temperatures over 500 degrees Fahrenheit should be avoided. Once the color change is observed with the gem, it should be removed from the flame immediately. In daylight, the gem is a brilliant, cinnamon brown and its color changes to a spicy orange hue after careful heating. Don't be alarmed when your stone begins to revert to its original color within a few moments-you've just observed its thermochromic property first hand! After a few moments, the original color returns upon cooling to room temperature. A wonderful addition to any gem collection, we invite you to discover the exotic nature of thermochromic zircon today. Please use every precaution when working with flame.
JTV's President's Collection offers prestigious Gemstones hand-selected by our very own President and Chief Executive Officer of Jewelry Television, Tim Matthews.
Tim is an accomplished scholar and life member of the Gemmological Association of Great Britain (Gem-A). His academic credentials include a Juris Doctor (JD) from Harvard Law School, Gemmology (FGA) and Diamond (DGA) diplomas from the Gemmological Association of Great Britain, and a Graduate Gemologist (GG) diploma from the Gemological Institute of America (GIA).
With a deep passion for gemstones and jewelry, he has personally curated each item in this exquisite collection. When you acquire an item from JTV's President's Collection, you can be assured that you have a special gem from our most exclusive collection. Each gem from this collection will come in special packaging with a certification card signed by our President and CEO.
Share this premier collection with our very own gem enthusiast Tim Matthews and grow your collection through JTV's President's Collection from The Vault by Jewelry Television.
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