Which girdle thickness percentage is outside the range for an excellent cut grade?

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Multiple Choice

Which girdle thickness percentage is outside the range for an excellent cut grade?

Explanation:
Girdle thickness is measured as a percentage of the diamond’s diameter and is one of the dimension traits considered when assessing cut quality. For an Excellent cut, the girdle should be in a moderate range—too thick can impede light performance and symmetry, while too thin can risk durability. Among the options, 5.0% represents a thicker girdle that would typically push the overall cut quality outside the range associated with Excellent. The other values (2.0%, 3.5%, and 4.3%) are within the acceptable spectrum for an Excellent girdle thickness. Therefore, 5.0% is outside the Excellent range.

Girdle thickness is measured as a percentage of the diamond’s diameter and is one of the dimension traits considered when assessing cut quality. For an Excellent cut, the girdle should be in a moderate range—too thick can impede light performance and symmetry, while too thin can risk durability. Among the options, 5.0% represents a thicker girdle that would typically push the overall cut quality outside the range associated with Excellent. The other values (2.0%, 3.5%, and 4.3%) are within the acceptable spectrum for an Excellent girdle thickness. Therefore, 5.0% is outside the Excellent range.

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