The Cut Integrity
Since symmetry and the cut significantly impact the brilliance of your marquise diamond, depth, girdle, culet, table percentage, and LW ratio are all crucial cut factors.
“A diamond’s cut is crucial to the stone’s final beauty and value. And of all the diamond 4Cs, it is the most complex and technically difficult to analyze,” explains the GIA.
Here are some cut values to help guide you while searching for a marquise diamond: