Gem stone are extensively used to enhance the look of silver jewelry and make them more fashionable as well as presentable to the buyers. There are various kinds of gemstones that beautify silver jewelry. The qualities sought in gems are beauty, rarity, and durability. The beauty of a gem depends primarily on its optical properties, which impart its luster, fire, and color; the durability depends on hardness and resistance to cleavage or fracture.

Precious & Semi Precious Gemstones
The precious stone is diamond and some forms of corundum such as ruby, sapphire, Oriental emerald, oriental topaz, oriental amethyst etc., and emerald. The chief semiprecious stones are aquamarine, amethyst, topaz, garnet, tourmaline, spinel, peridot, chrysobery, quartz, opal, turquois, moonstone and jade. The organic gems are pearl, ambe, coral and jet; of these, pearl is usually counted as a precious stone.

Artificial Gems
Artificial and imitation gems are of various kinds. Synthetic stones are made in the laboratory of the same chemical elements as natural stones. Among the synthetic gems produced commercially are rubies, sapphires, emeralds, and spinels. Diamonds of gem quality have also been manufactured. Synthetic stones may sometimes be detected by the presence of air bubbles, which, when numerous, cause a cloudy appearance; by having curved rather than straight striae; and by their unnatural color.