K color grade diamonds are the highest color grade stones within the faint color category. They offer a very slight yellow hue that makes them a great choice for yellow gold settings.
Are faint-color diamonds good?
Colorless diamonds and near colorless diamonds are more expensive than faint color diamonds. K color grade diamonds offer a tone difference so slight you likely wouldn’t be able to tell the difference between a K-grade stone and a J-grade stone if you viewed them side by side. This makes a K-grade diamond a much better value for the price than a J-grade diamond.
Is color more visible in larger stones?
With many cuts, yes. If you are purchasing a stone of one-carat weight or more, Blue Nile generally recommends an H color grade or higher, but there are no hard-and-fast rules.
Does color naturally occur in diamonds?
It is very rare to find a diamond that doesn't have any color at all, which is why colorless diamonds are so expensive. The vast majority of diamonds have some level of naturally occurring color.