Gem stone jewelry
Jewelvalley gemstones can be categorized as naturally found and the human made stones. Natural gems are found in Mother Nature's earth whereas synthetic gems are created artificially. The laboratory gemstones possess essentially the same chemical, physical and visual properties as natural gemstones. Such gemstones are relatively cheaper than natural gem stones. Researchers and gemologists are of the opinion that only natural gemstones offer positive healing powers.
A gemstone is usually measured by weight and size or both. The basic unit for weighing gemstones is the carat, which is equal to one-fifth 91/5th) of a gram. Carats are divided into 100 units called points. For example, a half-carat gemstone would weigh .50 carats or 50 points. When gemstones are measured by dimensions, the size is expressed in millimeters (for example, 7x5 millimeters).