top of page

Grading Moissanite Gemstones

Moissanite Color Grade

​

Color grade refers to the amount of color present in the stone graded from a scale of D for colorless to Z for a slight yellow tint. Moissanite color grades are broken down into three major groups:

  1. Colorless: Comparable to a D, E, or F color grade

  2. Slightly Colorless: Comparable to a G, H, or I color grade

  3. Yellow Tinted: Comparable to a J or K color grade

Moissanite Clarity Grade

​

Clarity grade indicates the number of imperfections, known as inclusions. Nearly all gemstones have inclusions, but luckily for moissanite, most of its inclusions are not visible to the naked eye and require intense magnification to be seen.

Moissanite's clarity is graded depending on the number of inclusions the stone has. These grades can be brown down into five easy to understand categories:

  1. FL, IF: Flawless and internally flawless

  2. VVS1, VVS2: Very, very slightly included

  3. VS1, VS2: Very slightly included

  4. SI1, SI2: Slightly included

  5. I1, I2, I3: Included

​

Moissanite Cut Grade

​

Cut grade denotes how well a stone is cut and with grades ranging from Excellent to Poor. With excellent cut grades, light can best travel throughout the stone and sparkle. Alternatively, poorly cut stones will not allow light to effectively travel throughout the stone, resulting in a lifeless looking moissanite. The grade chart for cut is simply:

  1. Excellent

  2. Very Good

  3. Good

  4. Fair

bottom of page