Description

A gemstone is called semi precious is naturally gemstones

which is cut and polished form, is used to make jewelry However, certain rocks and occasionally organic materials that are not minerals
are also used for jewelry and are therefore often considered to be gemstones as well.

Most gemstones are hard, but some soft minerals are used in jewelry
because of their luster or other physical properties that have aesthetic value.

Rarity is another characteristic that lends value to a gemstone.