richness

US /ˈrɪtʃ.nəs/
UK /ˈrɪtʃ.nəs/
1.

rijkdom

the quality of having a lot of something that is valuable or interesting:

:
•
We were impressed by the great richness of detail in her painting.
:
richfilthy richstrike it richan embarrassment of richesfrom rags to riches