The art of Gem carving is worth more than a note as often times it takes a specialist who has the makings of an artist to painstakingly engrave beautiful images on small surfaces that quite often are brittle. And a mistake in this process would prove to be quite a costly affair as gemstones are expensive. There are many specimens of glyptic art that have been preserved till date but among them the ones that deserve real study and attention are the ones that have horoscopic detail included.