Commercially Clean - The common meaning of this refers to a stone reasonably free from inclusions. If a diamond were without flaws or blemishes, logically, it would be called flawless.
Commercially Clean - The common meaning of this term is "reasonably free from inclusions." IF a diamond were without flaws or blemishes, logically, it would be called flawless or perfect.
Commercially clean or commercially perfect: The common meaning of this term is "reasonably free from inclusions" implying that the diamond is "almost perfect.
Terms such as "pure", "eye-clean" and "commercially clean" and other misleading descriptions are not to be used.
The sub-division of the clarity grade VVS, VS and SI into two sub-groups each is only allowable for size of 0.47 ct. and above.
 See also: Clean, Crystal, Crystalline, Grain, Shape
  
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