Loose Lab Synthetic Topaz Sky Blue and Swiss Blue Color #107 and #108 Round Shape Faceted Cut 3mm Gemstones wholesale from China Supplier and manufacturers.
What's Synthetic Spinel?
A: Although not as widely used today as synthetic Corundum, synthetic Spinel is still one of the most common man-made gem materials, particularly blue synthetic Spinel. It appears frequently in class rings and costume jewelry. Blue, green and other colors of synthetic Spinel are mostly manufactured using the inexpensive flame-fusion method by which the Spinel develops around an elongated boule. These flame-fusion Spinels can be distinguished from natural Spinels by a slightly elevated refractive index due to a chemical variation involving higher aluminum content.
Blue Synthetic Spinels of the flame-fusion type are typically colored only by cobalt. No iron is added, and therefore they are diamagnetic, another property that distinguishes blue flame-fusion Spinels from blue natural Spinels. When viewed under the Chelsea filter and also under long wave UV light, the light blue and medium blue gems pictured below left and center show a pale pink reaction due to low cobalt content, while the dark blue gem on the right appears bright red due to much higher cobalt content. None of the synthetic Spinels shown below contain enough cobalt to cause magnetic attraction.
Comparision of Spinel and Other gemstones:
The Popular colors of Spinel Stones:
107# 108# colors are the simulated colors of Topaz Sky blue,
120# is the simulated color of Topaz London Blue.
119# is the simulated color of Topaz Swiss Blue.
112#, 113#,114# are the simulated color of Sapphire blue.
149#(Light) and 152#(Dark) are the simulated color of Tourmaline Green Color stones.
Click the following Color Chart and Shapes & Size Chart to learn More.
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- Bulk product quality is not same as samples;
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