Natural Black Spinel Loose Gems Marquise 2x4mm

Product Detail:

Black SPINEL, from it comes out, the output is self-evident, how many hundreds of millions, most of these will not be done by hand inlaid finished products, generally using wax inlaid technology to solve the inlaid, black spinel electroplating equipment requirements are higher, in general, the aging of some equipment or the improper treatment temperature of skilled workers will cause the coloration of black spinel caused by electroplating. We hope that the vast number of jewelry manufacturers can better master the electroplating treatment process after the insertion of black spinel, in this way can not cause problems such as electroplating coloring. The permanent black sharp crystal round shape, the natural pure black color, the ingenious gemstone craft machine cutting, also can let the gemstone shine brightly, lets each gemstone shine on the stage each ring, the pendant, the chain and so on, let each person who wears jewelry enchanting and beautiful, more show personality publicity. Black SPINEL is a natural material and is met with high temperature non-fading material, widely used in zircon jewelry, with a unique pure black, non-discoloration.

There are many specifications of black spinel, such as 1.0 mm, 1.1 mm, 1.2 mm, 1.25 mm, 1.5 mm, etc. .

Purpose：

Since 2008, a kind of natural stone, Obsidian, has been used to inlay bare stones on jewelry. In the gemological field, black spinel is commonly used as a uniform name. Its characteristics are high temperature resistance, non-fading, and pure black color, which can better reflect the ring, the pendant, the stone on the chain. High temperature resistance can be widely used in the wax setting technology of gemstones. Natural Black Spinel is usually used to replace the artificial black zircon. Most of the artificial black zircon is naturally full of color. When the temperature is too high, it will generally exude color, the colors attached to the black zircon are discolored at high temperatures and turn into raw stones, resulting in some disorganized colors. The melting point of natural black spinel is over 1800 °C, this does not take into account the reasons for the fading of Zircon caused by the complex manual inlay methods. And to inlay the finished jewelry to make its metal color is more bright spots, black spinel iron content is higher, electroplating will electrify, electrolytic metal ions will be attached to the black spinel above, make its metal material, appears to reflect the black spinel are covered with black, these are in fact a jewelry factory plating process is not good cause.