Asked by: Juris Theysonasked in category: General Last Updated: 4th May, 2020
How can you tell fake spinel?
Herein, is spinel a real gemstone?
All About. Spinel is a gemstone that comes in a variety of colors. Pure Spinel is colorless, but impurities are responsible for the wide range of colors. The most valuable and desirable Spinel color is a deep blood red, though blue, yellow, orange, pink, and purple colors also make fine gemstones.
Similarly, are spinels valuable? Star spinels are known, but are extremely rare. Certain colors are more valuable, especially reds and strong pinks. Many spinels have a significant gray secondary hue, and these colors are much less valuable. Top spinels in the 2 to 5 carat size will often sell for $3,000 to $5,000 a carat.
Then, how is synthetic spinel made?
Although synthetic spinel is also produced by flame-fusion, any resemblance between man-made spinel versus Verneuil rubies and sapphires or other colored corundums ends at the torch. An imitation Lapis Lazuli is made by sintering finely ground synthetic spinel and then recompacting it under pressure.
How do you identify a cobalt spinel?
Natural spinel that has been diffused on the surface with cobalt has pure blue color and can look similar to genuine cobalt spinel. And like untreated cobalt spinel, cobalt-diffused spinel gems appear red under a Chelsea filter and fluoresce red under longwave UV light.