Inclusion Gallery-CGRL colored gemstone research laboratory

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Type :

Ruby
Sapphire
Emerald
Spinel
Chrysoberyl
Garnet
Opal
Amber
Other

Origin :

Burma
Mozambique
Sri Lanka
Zambia
Colombia
Bazil
Afghanistan
Pakistan
Tanzania
Other

Enhancement :

Unheated
Heat
Coating
Glass filling
Dyed
Other

Spherical gas bubbles in a lead-glass filled ruby

Colored Gemstone Research Laboratory

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