Precious and Semiprecious Ston es
Rubies, emeralds, and sapphires are always classed as precious stones. Many other gems should be termed "precious stones" because of their rarity and beauty. Especially should they be termed so in times when they are much in vogue, and because of this demand through fashion have advanced very largely in price.
The question may be summed up by saying that in addition to diamonds, rubies, sapphires, and emeralds, very fine specimens of many of the so-called semiprecious stones should be considered precious stones, perhaps at all times, and unquestionably so at times when there exists a fashionable demand for them and they have in consequence attained great value.