Diamond, Emerald, Sapphire, Ruby, Cat Eyes, Precious Gemstones, Loose Gems, Gemstones Sale, Price of Gemstones

PRECIOUS LOOSE GEMS:


Specials Product:
CODE: D001

Diamond Rough
0.3 - 1.5 carat
USD $ 190/Crt
Detail report
CODE: Z001

Emerald Rough
1.5 - 10 carat
USD $ 40/Crt
Detail report
CODE: R001

Ruby Rough
1.5 - 10 carat
USD $ 40/Crt
Detail report
CODE: S001

Sapphire Rough
1.5 - 10 carat
USD $ 40/Crt
Detail report
CODE: Y001

Yellow Sapphire Rough
1.5 - 10 carat
USD $ 40/Crt
Detail report
CODE:  C001

Cat Eyes Rough
1.5 - 10 carat
USD $ 30/Crt
Detail report

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Semi Precious Gemstones

A semi-precious gemstone includes any gemstone other than sapphire, emerald or ruby. The value of semi-precious gemstones can vary depending on the availability of the mineral; natural black opal, for example, is hard to come by and more valuable than most other semi-precious stones. As a rule, however, semi-precious stones are always more plentiful than precious stones. That makes it easier to find large, well-colored, very clean stones appropriate for jewelry. In addition, the wide range of colors available makes semi-precious stones the choice for people who want to create their own look with their jewelry.
The precious gemstones - sapphire, ruby, and emerald - are among the most prized. Precious gemstones of good size and quality are so rare that a natural, unenhanced, strongly colored stone can be worth as much per carat, or more, than a diamond of comparable quality.
iven the extreme cost and rarity of such stones, jewelers developed ways to enhance the appearance of more common stones, both precious and semi-precious. For hundreds of years, it has been common practice to heat gems to bring out their best color. This is viewed as simply extending what nature started, since it is the heat and pressure within the earth that gives gems their color.
There are many other common types of treatment to enhance the beauty of colored gemstones. Emeralds are often oiled and waxed to protect them and to hide fine lines that naturally occur in the stone. Some sapphires have their blue color enhanced using diffusion, a chemical process. Certain stones are treated with radiation, again mimicking the processes of nature. All these practices are standard in the jewelry industry; in fact, enhancement is so common that good quality unenhanced stones often come with a certificate stating that fact.
The idea that some gemstones are precious and others are only semi-precious is familiar to every buyer of colored stones. Precious stones — diamond, ruby, sapphire and emerald — traditionally command a premium price in the market due to their extraordinary color or brilliance and extreme rarity.