Moissanite is primarily graded based on the 4Cs: carat, color, clarity, and cut. Below is a detailed breakdown of these four aspects:
Carat:
Carat is a unit of measurement for diamond weight, with 1 carat equal to 0.2 grams or 200 milligrams.
The price of a moissanite generally increases with carat weight, especially when the other three Cs remain constant. Larger carats are more valuable and rarer.
Color:
The color grade describes the color intensity of moissanite, ranging from colorless to yellow.
The highest grade is D (completely colorless), and grades increase to Z (distinct yellow). Grades D through F are pure, transparent, and colorless.
The color of a moissanite significantly impacts its quality and value. The more colorless and transparent a moissanite is, the more light can penetrate it, resulting in a more vibrant and colorful appearance after refraction and dispersion, and therefore, a higher value. Clarity:
Clarity refers to the number, size, type, and location of internal and surface flaws in a moissanite.
Clarity grades range from high to low: FL (Flawless), IF (Internally Flawless), VVS (Very Slightly Included, further subdivided into VVS1 and VVS2), VS (Slightly Included, further subdivided into VS1 and VS2), SI (Slightly Included, further subdivided into SI1 and SI2), and I (Visibly Included, further subdivided into I1, I2, I3, and sometimes even P3).
The higher the clarity, the higher the value of the moissanite. Moissanite grades from SI to VVS are more common on the market.
Cut:
Cut evaluates the quality of the moissanite's cutting process and affects its fire (light dispersion), scintillation (light reflection), and brilliance (total light output). Cut grades typically include Excellent, Very Good, Good, Fair, and Poor, though some also refer to them as Very Good, Good, and Fair. An excellent cut (such as 3EX) will result in a moissanite displaying exceptional fire and scintillation.
