an Emeraud] A stone of most perfect greene colour, most pleasant to the eye-sight, and profitable both to preserve it, and to recover it when it is weakened; as Pliny saith, lib. 37. 100: 5. See Rueus lib. 2. of Gem. 100: 4. p. 237. a Saphire] Is a precious stone of a light coloured purple, or of a blewish colour, like to that which is sometimes seene in the cleare skie. Ibid. ch. 2. p. 233. a Diamond] Is a stone bright and white. like Crystall; but in a more excellent degree, very hard, Ezekiel 3:9. Zechariah 7:12. Jeremiah 17:1. though in those places the Hebrew word be not Jahalom, as here, but Shamir) so hard, that by blowes the hammer and anvile receive more hurt from it, then it from them, Plin. nat. hist. lib. 37. 100: 10.