Colored gemstones include all gemstones except diamonds. This also includes some non-mineral gems such as pearls and ivory. Only a select few of the vast number of minerals known qualify as gemstones. In order to become a gemstone, the mineral must be rare and beautiful, and be durable enough to be worn as jewelry. There are many minerals that are both rare and beautiful but are too soft or fragile to be worn as jewelry.

Beauty
Colored gemstones derive their beauty from their color  purples, blues, greens, yellows, oranges and reds. Color occurs naturally in gemstones. In many cases, the color is enhanced my man. Gem cutters work to achieve a pleasing and affordable mix of color, weight and a safe shape for mounting. Sparkle adds to the beauty of gemstones. Some gemstones such as opal are suited to a smooth, rounded surface. Others like sapphire are shaped with a precise series of flats.

Rarity
Because of their rarity, gemstones in which color is naturally occurring are generally more valuable. Many gemstones are treated or enhanced in some way, such as heat or safe irradiation, to achieve the beautiful colors or clarity that we desire. These gems which are less rare can also be very valuable. Gemstones can also be created synthetically in laboratories. These gems are less expensive and are an acceptable choice for some budgets.

Durability
A gemstones ability to be fashioned, mounted and worn is a function of how durable it is a matter of both hardness and toughness. Gemstones like sapphire, ruby and garnet are well suited for an active lifestyle and can be worn in rings, bracelets or cufflinks. Others, such as emeralds, pearls and opals, call for earring or necklace mountings to keep them beautifully displayed but out of harms way.

What Is The Difference Between Precious And Semi-Precious Gems?

In the past, the term "precious" was used to describe diamond, emerald, ruby, sapphire, precious opal, and pearl. The term "semi-precious" referred to all other gemstones. Today, most jewelers and gemologists discourage using these terms because they do not accurately reflect the true value of these gems. In particular, some of what were previously called semi-precious gems, natural alexandrite and demantoid garnet for example, are so rare that they can command prices in many cases exceeding those of emerald, ruby, and even diamond.

What Is The Difference Between Synthetic And Imitation Gemstones?

A synthetic gemstone is a laboratory-grown gemstone that has the same physical, chemical, and optical properties as its naturally occurring counterpart. An imitation gemstone is a substance having properties other than the naturally occurring gemstone it is imitating. Imitation gems may be made of glass, plastic, or other synthetic gem material - for instance, laboratory- grown synthetic color-change sapphire imitating natural alexandrite. Federal Trade Commission regulations require that all synthetic and imitation gem materials must be disclosed to the buyer by the seller at the time of sale.

Buying colored gemstone jewelry
- Because of the subtle differences in the tone and hue of the colored gemstone you are considering, look at several to find the one you prefer.
- Discuss how you see yourself wearing the piece so that your jeweler can help you select mountings consistent with your lifestyle.
- You have the right to know what you are buying. The FTC has established guidelines for the jewelry industry stating that jewelers must disclose any treatment that is not permanent or if a stone is synthetic.
- It is important to obtain this information before making a purchase because it affects the purchase price.

Caring for Colored Gemstones
- Many gemstones are treated and enhanced. These treatments and enhancements can affect how you clean and care for your color gemstones. Consult your jeweler for more information on caring for treated or enhanced gemstones.
- After wearing wipe gemstones with a clean, soft, and slightly damp cloth. This will enhance the luster of the gemstones and ensure that your jewelry is clean.
- Store gemstones pieces individually in soft pouches. You should be able to obtain these from your jeweler.
- Do not expose precious gemstones to saltwater or harsh chemicals, such as chlorine or detergents. These chemicals may slowly diminish the finish and polish of gemstones.
- Do not subject gemstone jewelry to sudden temperature changes.
- Hair spray, perfume and perspiration may cause the jewelry to become dull. Apply all cosmetics, perfume, and colognes before putting on colored gemstone jewelry.


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