M colour diamonds

M is a faint grade on the D to Z colour scale. The last faint grade.

Grade: 10th of 23, in the faint group
What you see: Colour is still hard to see for an untrained eye.
In RXXO: 1 in 20 diamonds

M in RXXO

137diamonds like this in RXXO right now

Questions

Is M a good colour for a diamond?

M is faint: colour is still hard to see for an untrained eye.

How rare is M colour in RXXO?

About 1 in 20.

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