[ dahy-muh n-dif-er-uh s, dahy-uh- ]
/ ˌdaɪ mənˈdɪf ər əs, ˌdaɪ ə- /
containing or yielding diamonds for mining.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for diamondiferous
During 1909 various companies were formed to exploit the diamondiferous area.
Well, of my thirty thousand tried acres, a hundred only are diamondiferous.A Simpleton|Charles Reade
Since that epoch the exploitation has been continued by lessees of the diamondiferous grounds.