Hyacinth

used in the Revised Version for jacinth in ( Revelation 9:17 ) It is simply another English spelling of the same Greek word.

HYACINTH

hi'-a-sinth (huakinthos):

the Revised Version (British and American) uses this word in Revelation 9:17 for the King James Version "jacinth," with reference, not to stone, but to dark-purple color. In Revelation 21:20, where stone is meant, the Revised Version (British and American) translations "sapphire."