The first and the most basic way to identify Gemstones is color. Gemstones are evaluated and graded on the basis of color which again is split into 3 classes – Hue, Tone, and, Saturation.
Hue refers to the color composition from the spectrum, and hence the dominant color of the Gemstone. Tone accounts for the different shades in the gemstone. It determines the depth of the color of gemstone and ranges from washed-out to pitch black. Saturation – Saturation refers to the intensity of the color of a gemstone. It species the vividness and purity of color.
Cut in terms of gemstones refers to the ability of a stone to reflect light, the luster of its polish and way of appearance. It takes years of experience to learn how to shape a gemstone to make its cut as superior as possible.
A cut in a Gemstone is usually identified by a rating system set by industry standards. This five-tier system ranges from excellent to poor and the quality of stone’s cut is physically measured by this system.
Gemstones are formed under extreme pressure and all the natural gemstones that are extracted have some kind of visual inclusion. It may be in the form of a crystal or a cloud.
The clarity of the Gemstone is identified by the relative lucidity of the gemstone. A high quality gemstone appears clean and clear to the naked eye. Clarity of the gemstone also affects the other characteristics of the stone. For example, if the clarity of the stone is of average quality, it will reduce its value even if it has good cut and color.
Each gemstone is unique and the different families of gemstones possess different densities. Unlike other objects, gemstones are measured in Carats.
The size of the gemstone does not affect the weight of the stone because some stones are denser and are small, whereas some stones are big in size meanwhile weighing less. The value of the gemstone as such is influenced by the carat weight. It must be kept in mind that the value of a gemstone is affected by individual characteristics, but all the characteristics combined yield the actual value of the stone.
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