Dict: easton - Jacinth

easton:

Jacinth @ properly a flower of a reddish blue or deep purple (hyacinth), and hence a precious stone of that colour kjv@Revelation:21:20). It has been supposed to designate the same stone as the ligure (Heb. leshem) mentioned in kjv@Exodus:28:19 as the first stone of the third row in the high priest's breast-plate. In kjv@Revelation:9:17 the word is simply descriptive of colour.