/ Dictionary / Index J Jonker diamond: Meaning and Definition of Find definitions for: Jon'ker di'amond Pronunciation: ( jong'kur), [key] a noted diamond weighing 726 carats, discovered in the Transvaal in 1934 and cut into 12 pieces. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. jongleur Jönköping Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language