Mining diamond

[Concerned Farmer]

Hi guys!
I know you can mine diamond from floor 50 on, but I wanted to know, if the higher the floor the higher the chance of finding diamond is.
Thanks!

 

[Odin]

From the wiki's mining page:

Diamond Nodes begin appearing at level 50 in the mines, at approximately 1 in 500 chance of appearing in place of a stone. For every level after level 50, frequency increases by .000016 per level. This makes for a .0028 chance for a diamond node to appear in place of a stone at floor 100 (1.2 in 500 or 7 in 2500), and ultimately a .003104 chance for a diamond node to appear in place of a stone at floor 119 (1.552 in 500 or 194 in 62500).

So it sounds like yes, but not by very much, you're probably best off just starting at 50 and working down from there. Based on these numbers I'd suspect that the number of floors you visit in a day will help your odds more.