Who is in love with Glyptics?

[LCR]

No, Glyptics - not the ancient nymph, which fell in love with one of their many gods of ancient Greece, it is not even some kind of show-business stars, ever-present in the pages of magazines people, do not expect me stories from burning jealousy, betrayals, breaks and reconciliation, although it also vyzyvalv passion. We can say that in the name glyptics been committed many crimes. This is the art of carving in precious and semiprecious stones. Subject glyptics are gems, which are subdivided into intaglios - stones with in-depth image, often served as seals, and cameo with the relief image.

Here are some examples of gems (the vast majority - cameos, but there are some intaglios), produced in very different times and in different styles.

I suggest you fill the leisure time in trying to identify a sample, which I propose to your enlightened attention