Cheat Sheets for Gemologists

Step 3: Practical Gemology

Lesson 27

Clarity Types

Type I
Usually eye clean
Type II
Usually included
Type III
Almost always included
Aquamarine Chrysoberyl, yellow and green Heliodore Morganite Quartz, smoky Spodumene, all Tanzanite Tourmaline, green Zircon, blue Andalusite Alexandrite Corundum, all Garnet, all Iolite, Peridot, Quartz, amethyst, citrine, ametrine Spinel, all Tourmaline, all but green, red and watermelon Zircon, all but blue and colorless Emerald Tourmaline, red and watermelon


Clarity Grades

Clarity Type I Type II Type III
VVS Minute inclusions, difficult to see under 10X. Eye clean. Minor inclusions, somewhat easy to see with 10X. Usually eye clean. Noticeable inclusions under 10X. Usually eye clean.
VS Minor inclusions,

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