To check the quality and value of gems there are five criteria:
Color: The colors are bright and radiant, and adjusted radiation or heat.
Purity: a degree of serenity in these stones, each stone has a degree of
impurities, and stones free of impurities are very rare, for example, sapphire, coral and if very much full purity, it may be abnormal.
Weight: measured gemstone carat weight, a five-gram, and is considered gems lightweight because the size is too small, so the majority of stones weighing less than five carats.
Cutting and polishing: The process of multi-stone pieces, and different stones quality successively way cutting and polishing his process of cutting a certain way show the beauty and luster of the inside of the stone and splendor, and the pieces used pieces Barlenti ring roads, oval, Marquis, and emerald, and others.
How to extract gems:
Dig deep mines: These are for the extraction of diamond deposits, as in Africa, India and Siberia.
Digging trenches in the mountains: as being to extract rubies and exhale as in Burma.
The dismantling of the soil and break up rocks: This close to the surface of the stones, as well as being searched at the banks of rivers where the ancient sediments composed, and ongoing estuaries.
Industrial Stones: Stones are taking natural gems properties but are manufactured lack of the chemical composition, physical and optical properties, so that it looks natural gravel.
Stones are checked several devices, so difficult to distinguish from normal industrial them just by looking, and these devices are used to examine the microscope, measure the refractive index, a spectrometer, a polarizer, diamond test device, your estimate of the density and other stones.
Weight: measured gemstone carat weight, a five-gram, and is considered gems lightweight because the size is too small, so the majority of stones weighing less than five carats.
Cutting and polishing: The process of multi-stone pieces, and different stones quality successively way cutting and polishing his process of cutting a certain way show the beauty and luster of the inside of the stone and splendor, and the pieces used pieces Barlenti ring roads, oval, Marquis, and emerald, and others.
How to extract gems:
Dig deep mines: These are for the extraction of diamond deposits, as in Africa, India and Siberia.
Digging trenches in the mountains: as being to extract rubies and exhale as in Burma.
The dismantling of the soil and break up rocks: This close to the surface of the stones, as well as being searched at the banks of rivers where the ancient sediments composed, and ongoing estuaries.
Industrial Stones: Stones are taking natural gems properties but are manufactured lack of the chemical composition, physical and optical properties, so that it looks natural gravel.
Stones are checked several devices, so difficult to distinguish from normal industrial them just by looking, and these devices are used to examine the microscope, measure the refractive index, a spectrometer, a polarizer, diamond test device, your estimate of the density and other stones.
