Semi Precious Jewellery

For hundreds of years, gemstones have been categorized into two groups: precious and semi precious, the latter being used for semi precious jewellery. Today we believe diamonds, rubies, sapphires, and emeralds to be "precious”. They are based largely on style and the structure of these lists has changed recurrently for semi precious jewellery.

A precious or semi precious stone, is a piece of mineral, -of which when it is cut and polished- is utilized to create semi precious jewellery or other embellishments. Though some rocks and organic materials are not minerals, but are nonetheless used for semi precious jewellery, and are considered to be gemstones. Most gems are hard, but certain soft minerals are used in semi precious jewellery because of their sheen or other substantial assets that have worth.

Gemologists describe gems and their distinctiveness using terminology limited to their field. A gemologist uses a stone’s chemical composition to be worn in semi precious jewellery. Many gems used in the making of semi precious jewellery are crystals which are sorted by a crystal system.
Semi precious jewellery gemstones are classified into different species, groups, and varieties. Gems are labeled in terms of dispersion, cleavage, hardness, specific gravity, luster, and refractive index; defects in a stone could be seen as inclusions.

There is no collectively established grading system for gemstones used in semi precious jewellery besides white diamond. Traditionally gemstones wanted for semi precious jewellery were graded using the naked eye. The GIA system integrated a key modernization of 10x magnification as a standard for grading clarity needed in the making of semi precious jewellery.

The "four C's" (color, cut, clarity and carat), were initiated to aid the customers’ comprehension of the grading of a diamond for semi precious jewellery. The types can be valuable in discerning the grading of all stones used in semi precious jewellery. The grading depends upon whether they are related to colorless diamonds or to colored gemstones wanted in semi precious jewellery.

In diamonds, cut is the main influence of value ensued by lucidity and color wanted in semi precious jewellery. In gemstones that have color, including colored diamonds, it is the purity and splendor of the color that is the crucial verification of eminence used in semi precious jewellery.