How to tell the true and false diamonds? The latest diamond imitation-synthetic silicon carbide. The thermal conductivity of synthetic silicon carbide is close to that of diamond, and diamond reaction will occur when measured by diamond thermal conductivity meter, so it can not be identified by thermal conductivity meter. Due to the high hardness and high refractive index of synthetic silicon carbide, the surface reflection and luster of cut synthetic silicon carbide are very close to that of diamond. How to distinguish?
How to tell the true and false diamonds? How to distinguish synthetic moissanite from diamonds?
1.
Visually, synthetic moissanite is stronger than diamond in fire color, but often not as bright as diamond.
2.
Synthetic moissanite bare stone floats in this heavy liquid of 3.33 g/cm, and the diamond sinks.
3.
The color of synthetic moissanite is the highest equivalent to diamond H and I, and there are obvious green and gray tones from the exhibition hall.
4.
By magnifying observation, the slender white needle-like inclusions commonly found in moissanite were synthesized. As can be seen from the kite surface and the upper waist facet, the ridge line near the sharp bottom has a double image, like a lotus; There is also a double reflection from the waist when viewed obliquely from the desktop. Diamonds contain inclusions such as natural crystals, moire and cracks, and there is no ghost phenomenon. The original crystal plane is common in the waist.
5.
The polishing effect of synthetic moissanite is not as good as that of diamond, and the edges are blunt or the polishing textures of adjacent facets are parallel to each other.
6.
The synthetic moissanite rotates 360 under the cross polarizer, showing the extinction phenomenon of anisotropic body with four bright and four dark. The diamond is all black, and the isotropic body is dull.