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GIA Clarity Grades for colored
gemstones
Type 1
Aquamarine, Morganite,
Smokey Quartz, Citrine, Kunzite, Topaz, Green Tourmaline, Blue Zircon,
Tanzanite
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minute to not
detectable |
|
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VS |
minor |
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SI1 |
noticeable to
obvious |
|
SI2 |
obvious to
noticeable |
|
I1 |
prominent -
moderate affect on appearance or durability |
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I2 |
prominent -
severe affect on appearance & durability |
|
I3 |
prominent -
severe affect on beauty, transparency & durability |
Type 2
Alexandrite, Amethyst, Garnet, Iolite, Peridot, Ruby, Sapphire, Spinel,
Tourmaline (all except green, red, and pink), Zircon (all except blue)
|
minor |
|
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VS |
noticeable to
obvious |
|
SI1 |
noticeable to
obvious |
|
SI2 |
obvious to
prominent |
|
I1 |
prominent -
moderate affect on appearance or durability |
|
I2 |
prominent -
severe affect on appearance & durability |
|
I3 |
prominent -
severe affect on beauty, transparency & durability |
Type 3
Emerald, Pink and Red Tourmaline
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noticeable to
obvious |
|
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VS |
noticeable to
obvious |
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SI1 |
obvious to
prominent |
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SI2 |
obvious to
prominent |
|
I1 |
prominent -
considerable affect on appearance or durability |
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I2 |
prominent -
severe affect on transparency or durability |
|
I3 |
prominent -
severe affect on beauty, transparency & durability |
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© Veychek Gardens & Nursery Inc |
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1997 all rights reserved |