Sapphire Color Grading Scale

Check for symmetry windowing and extinction.

Sapphire color grading scale.

Color is the most important. Sapphire ring co has incorporated the official gia sapphire and ruby color map below. These include sapphire color sapphire clarity and also their cut and carat weight a sapphire s country of origin is also taken into consideration when determining its value. More ruby and sapphire grading tools.

The price of a sapphire varies greatly with its quality. Standardized grading of color clarity and cutting has never been something that has been established on a uniform basis within the trade or within the various. Gemologists in their color grading of sapphires rubies. Hue tone saturation.

Sapphires come from a family of gemstones called corundums. Analysis grading. The charts explain the color grading system used by all gia g g. Look out for bulging areas and a thick pavilion.

The charts illustrate the wide variations in color gradings for sapphire and rubies as well as the three main factors which make up sapphire s color. Each category has its own color range causes of. Given the lack of a standardized grading system for sapphires it is important to be able to differentiate a superior quality sapphire from an inferior quality one. Natural sapphires are graded and valued by a few factors.

Of course to measure a gem s carat weight you only need an accurate scale calibrated to measure small objects like gemstones. Different grading systems are used to determine the quality of this precious gemstone depending on what factor is being graded.