Clarity : The clarity scale includes eleven clarity grades ranging from Flawless to I3. Clarity is defined by the inclusions within a stone. An inclusion is a naturally occurring flaw (feather, fracture, fissure, carbon spot, or cloud), within a diamond. The best value in diamond clarity is a diamond with no inclusions visible to the unaided eye. Below is the clarity scale with the most desired clarity listed first:
- IF – Internally Flawless
- VVS1 – Very Very Slightly Included
- VS1 – Very Slightly Included
- SI1 – Slightly Included
- I1 – Included *
- I2 *
- I3 *
- Inclusions are visible to the unaided eye
Diamonds with clarity of SI2 or better do not have inclusions visible to the human eye, and can only be viewed under high-powered magnification.
* All of the above information was provided by the standards set by the GIA.