J colour diamonds

J is a near colourless grade on the D to Z colour scale. The last near colourless grade.

Grade: 7th of 23, in the near colourless group
What you see: Colour is usually unseen except by trained graders.
In RXXO: 1 in 40 diamonds

J in RXXO

69diamonds like this in RXXO right now

Questions

Is J a good colour for a diamond?

J is near colourless: colour is usually unseen except by trained graders.

How rare is J colour in RXXO?

About 1 in 40.

What is the difference between J and K colour?

One step on the D to Z scale: J has a touch less colour than K. Side by side, the difference is very hard to see without master stones.

RXXO numbers are the odds every mint draws from. Updated 8 October 2026.