Extended Strong's Greek Lexicon (Abbott-Smith based)
emerald
Usage: σμαράγδινος (σμάραγδος, which see), __1. of emerald (Luc., V.H., ii, 11). __2. As in π. (Deiss., BS, 267), emerald-green: Rev.4:3 (for the construction, see Swete, in l; Zorell, see word).† (AS)