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DeGwyn Gems, Private Jewelers since 1975

Gemstones - Minerals and organic materials used for personal adornment that possess beauty, durability and rarity.

Colored Gemstones - Ruby, Sapphire, and Emerald

Gemstone Value

The value of any gemstone is based on a number of elements, the most important of which, as categorized by the Gemological Institute of America, are:

Beauty - For gemstones to be considered valuable, they must first be seen as beautiful. Minerals and organic material considered for use as gemstones can be found in varying levels of beauty. These levels of beauty are usually based on the intensity of color, lack of imperfection, degree of clarity for transparent gemstones and the final form of the finished cut gem.

Rarity - The value of a gemstone is greatly affected by the rarity of the particular gemstone material from which it is derived. Although there are a number of readily available and plentiful minerals that are beautiful enough to be considered for use as gemstones. The Quartz family of gems for example which includes Amethyst and Citrine rarely command high prices per carat even in the best of qualities. Others, however, such as Ruby and Emerald, which have become exceedingly scarce in finer qualities, can command prices that exceed Diamonds of comparable size and quality. Generally speaking, for any gem material, the rarer the material the more valuable it becomes.

Durability - One of the essential characteristics of gemstones is their ability to survive. For a material to be considered for use as personal adornment, it must be able to resist ordinary wear and tear well enough to retain its beauty and finish for a reasonable length of time. Unlike metals that oxidize and organic material that decomposes, gemstones can, with ordinary care, survive unchanged for generations.

Gems used in Jewelry - Of the more than 2000 minerals, only about 100 are considered beautiful and durable enough to be considered gemstones and of those only a dozen  or so are of importance to the jewelry trade. The most notable of these are Ruby, Sapphire, Emerald, Pearl and Opal. Others include Tanzanite, Aquamarine, Garnet, Moonstone, Tourmaline and Alexandrite as well as the Quartz family of Amethyst, Citrine, and Rose Quartz.

Over the years, we have focused our efforts in locating and providing our clientele with the finest selection of Diamonds and colored gemstones available with special consideration for Rubies, Emeralds, and Sapphires.

For more information on these particular gems, please refer to the following pages: