Gemstone Ratings

Mining activity and the quality of mined stones changes as do customer s preferences. Green to greenish blue slightly included moderate to medium color change. Description industry standards agta codes. Deeper green to bluish green clean bright to high color change. This benefits everyone buying or selling coloured gems the gübelin gemstone rating was developed for high quality natural coloured gemstones such as rubies sapphires emeralds as well as padparadscha sapphires paraiba tourmalines spinels and numerous other varieties of precious.

A gem s saturation refers to the intensity of its hue. Gemstone rating the house of gübelin is proud to present the first coloured gemstone rating geared particularly towards the end consumer. Black and white are tones from darkest to lightest. Black white and brown refer to tones and saturation not hues. Top brands reviews prices.

Find the top gemstones with the msn buying guides compare products and brands by quality popularity and pricing updated 2020 10 best gemstones of 2020 msn guide. With the gemstone rating and gübelin points we offer more transparency comparability and orientation. Light green to greenish blue included weak to low color change. Aa si2 i1 or bargain this grade denotes that the product is in question is semi clean well cut and polished poses variations and inconsistency in color appropriation. In terms of jewelry it denotes gold jewelry with si1 si2 diamond or si1 si2 clarity gemstones.

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A gem s tone refers to a gem s relative lightness or darkness. A gem s saturation refers to the intensity of its hue. Mining activity and the quality of mined stones changes as do customer s preferences.