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When we use the word gemstones, we actually talk about a category of minerals that is after cutting and polishing get its original form. However, people from long times use almost all of the varieties of minerals as decoration material. Minerals like coral, pearls, amber and ivory are usually cut and polished to fit in the jewelry articles. Materials like horns, bone, shells, seeds, glass, wood and pottery are also used as decorative materials for jewelry.

Some of the most striking jewelry articles of this globe are actually made up from different semi-precious gem stones. Gemstones found rarely such as amazonite (a bright green gemstone) are the most expensive stones on this globe. Few year back, the amazonite gemstone are only available in Russia but recently these are also found in Colorado and Madagascar.

Citrin (citrin quartz) is another category of gemstones that are originally made up of amber color minerals. An aventurine is another common form of gemstone that usually of green color, but also available in orange, brown, yellow and grey colors. The rarest color among this category of gemstone is the red color and due to rarity it holds huge prices.

Another name in the list of quality gemstones is (iolite) cordierite that actually is a form of magnesium, iron and aluminum cyclosilicate. Lapis is next in the name list of precious gemstones that was originally discovered in Egypt.

Turquoise is one another stone used as an ornament stone. Iran and peninsula are chief source destinations for these gemstones but the stone is finalized in turkey. Jade another name in the list and is the interesting category of gemstones. This is a hardest mineral that originally was used for weapons, knives and axe heads. Jade is recognized as a official gemstone of British Columbia and for this reason jewelers usually sold numbers of gems on the name of jade that are not the original and effective.