Grey diamonds
Grey diamonds owe their colour to tiny cloud-like inclusions. With boron, grey turns cool and bluish.
- In nature
- Less common than yellow and brown.
- In RXXO
- 1 in 13 diamonds
Grey in RXXO
226diamonds like this in RXXO right now
Questions
What makes a diamond grey?
Grey diamonds owe their colour to tiny cloud-like inclusions. With boron, grey turns cool and bluish.
How rare are grey diamonds in RXXO?
About 1 in 13. Purple is the rarest colour in RXXO, colourless the most common.
RXXO numbers are the odds every mint draws from. Updated 8 October 2026.