What are the dangers of wearing moissanite for a long time?

No harm.

natural moissanite

Dating back to the late nineteenth century, the term moissanite is derived from Dr. Henri Moissan, who discovered the mineral in an Arizona meteor crater in 1904. Moissanite (a kind of silicon carbide) is also known as carborundum. Most of the moissanite is artificially synthesized. Natural moissanite is very rare and only appears in craters, and its color is mostly dark green and black. It has been mainly used as abrasive for many years, and in recent years, it has been researched and developed for applications in the field of electronics, such as materials for light-emitting diodes. The color of synthetic moissanite is mostly I or below, and some moissanite has a light green tinge, which means that the appearance of moissanite is very similar to that of diamond.

The difference

At first glance, Moissan and diamonds are indistinguishable, even instruments can't distinguish them, but if you look closely, you will find that Moissan's colorful fire is stronger than diamonds. Tested under professional instruments, Moissan's fire is 2.5 times that of diamonds. In fire, diamond is 0.044, Moissan is 0.104; in refraction, diamond is 2.417, Moissan is 2.65, Moissan's fire and refraction are more than diamond. On the Mohs scale, diamonds are 10 and Moissanites are 9.25, much higher than other gemstones. But Moissan sells for an average of one-tenth the price of a diamond of the same grade.

Color

Synthetic silicon carbide is not yet colorless, mostly light gray-green, light yellow, gray-blue. According to GB/T 16554-1996 "Diamond Grading Standard", the color grade is below 96, 95 (H, I) (see the table below). Dichroic (diamonds are not dichroic). GB/T 16554-1996 Colorless-yellow (brown) diamond color grading standard Diamond color grade D 100 very white E 99 F 98 excellent white G 97 H 96 white I 95 yellowish (brown, gray) white J 94 K 93 light yellow (brown, gray) white L 92 M 91 light yellow (brown, gray) N 90 < N < 90 yellow (brown, gray)

Cleaness

Synthetic silicon carbide belongs to the equiaxed crystal system, which can be crystallized to 2-3 inches of columnar crystals, and some materials can achieve IF (Internally Flawless) grade (internally Flawless). Polishing removal); most of the synthetic silicon carbide has fine white line-like inclusions composed of white spots, and the detection is mostly micro-defect grade VS or defect grade SI. The direction of its inclusions is roughly perpendicular to the tabletop, and not completely parallel to each other (with a gap of a few degrees); very few have dark metal balls.

Weight

Synthetic silicon carbide has a specific gravity of 3.22 (diamond 3.52), which is about 10% lighter than diamond. According to the standard turning of round diamonds, when the diameter is 6.5mm, the diamond generally weighs 200mg (ie one carat). The 6.5mm round synthetic silicon carbide made by standard lathes weighs only a little more than 160mg (80 points).