K Colour Diamonds

K colour diamonds fall within the faint colour category, providing a slight warm yellow tone. This hue makes K coloured diamonds a budget-friendly choice, and a yellow gold setting enhances their tone. This colour grade is the most affordable of all the options sold at Blue Nile. Shop our K colour diamonds, which make a lovely choice for earrings and pendants with smaller stones.


24 of 13,008 K Colour Diamonds

FAQs about K Colour Diamonds

K colour grade diamonds are the highest colour grade stones within the faint colour category. They offer a very slight yellow hue that makes them a great choice for yellow gold settings.

Colourless diamonds and near colourless diamonds are more expensive than faint colour diamonds. K colour 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.

With many cuts, yes. If you are purchasing a stone of one-carat weight or more, Blue Nile generally recommends an H colour grade or higher, but there are no hard-and-fast rules.

It is very rare to find a diamond that doesn't have any colour at all, which is why colourless diamonds are so expensive. The vast majority of diamonds have some level of naturally occurring colour.

Top K Colour Diamond Reviews

Petite Micropavé Diamond Engagement Ring that was reviewed by Siti Y.

Marquise Diamond ring

Beautiful diamond and settings worth the wait. I chose a K colour with strong blue fluorescent at a very good price. The diamond sparkles and the fluorescent can’t be seen. It’s really a good quality n a good buy. I’m very happy.
Siti Y. - Verified Buyer
Average Customer Rating $5 out of 5 stars

Petite Micropavé Diamond Engagement Ring

14k Yellow Gold (0.09 ct. tw.)

HUF 300,540

Classic Four Claw Solitaire Engagement Ring that was reviewed by Michelle B.


I loved the entire experience of ordering from Blue Nile. I had never ordered from here before and wasn’t sure to believe all the great reviews but their return policy and customer service was wonderful so I felt confident. When I received my ring I was blown away at the care and quality that was put into everything from the making of the ring to the presentation. It was even more beautiful than the online photos and the value was absolutely amazing. I’m so happy with my purchase. The sizing is perfect and it’s so comfortable to wear.
Michelle B. - Verified Buyer
Average Customer Rating $5 out of 5 stars

Classic Four Claw Solitaire Engagement Ring

18k Gold

HUF 219,045


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