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K Color Diamonds

K color diamonds fall within the faint color category, providing a slight warm yellow tone. This hue makes K colored diamonds a budget-friendly

choice, and a yellow gold setting enhances their tone. This color grade is the most affordable of all the options sold at Blue Nile. Shop our K color

diamonds, which make a lovely choice for earrings and pendants with smaller stones.

Shop All K Color Diamonds

11 of 2,195 K Color Diamonds

1.00 Carat K-SI1 Very Good Cut Round Diamond

$1,920

1.00 Carat K-SI1 Very Good Cut Round Diamond

$1,940

1.01 Carat K-SI1 Very Good Cut Round Diamond

$1,970

1.00 Carat K-SI1 Excellent Cut Round Diamond

$1,970

1.00 Carat K-SI1 Very Good Cut Round Diamond

$2,010

1.00 Carat K-SI1 Very Good Cut Round Diamond

$2,020

1.00 Carat K-SI1 Excellent Cut Round Diamond

$2,020

1.00 Carat K-SI1 Very Good Cut Round Diamond

$2,050

1.00 Carat K-SI1 Very Good Cut Round Diamond

$2,060

1.00 Carat K-SI1 Excellent Cut Round Diamond

$2,110

1.00 Carat K-SI1 Very Good Cut Round Diamond

$2,130

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FAQs about K Color Diamonds

What are K color-grade diamonds?

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.