Emerald, a precious stone of a rich green color, upon which its value chiefly depends. This gem was the first in the second row on the breastplate of the high priest. Ex. 28:18; 39:11. It was imported to Tyre from Syria, Ezek. 27:16; was used as a seal or signet, Ecclus. 32:6, as an ornament of clothing and bedding, Ezek. 28:13; Judges 10:21, and is spoken of as one of the foundations of Jerusalem. Rev. 21:19; Tob. 13:16. The rainbow around the throne is compared to emerald in Rev. 4:3.