OVAL CUT DIAMOND COLOUR GUIDE
Colour in oval cut diamonds is graded by the GIA on a scale from D to Z.
As a general rule, smaller oval diamonds hide colour better than larger ones do. That is why, depending on the size of the diamond you are going to purchase, you may not need to buy a premium colourless stone, even if you want it to look white. While it’s usually impossible to see the difference between two colour grades for an untrained eye, the difference in price can be significant.