Cut

Cut

This refers to how well the stone is cut and polished, making sure the proportions of the stone are equal and balanced. A well cut diamond with an excellent polish will allow the light to travel correctly though the diamond giving it a much better “sparkle” or “fire” to the stone. A poor cut stone may look good under shop lights but put it in to daylight it may not have the same spackle.

JEWEL DiamondCharacteristics-Cut

The above diagram represents light travelling from the top of the diamond, to the cutlet (base point of the diamond) and back up throught the top. The better the cut, the better the sparkle, the example in the center is the ideal cut.