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Gemstones
Lab grown Zambian Emerald
Lab grown Colombian Emerald
Lab grown Alexandrite
Lab grown Ruby
Lab grown Sapphire
Shapes
Cushion
Heart
Marquise
Octagon
Oval
Pear
Princess
Round
Asscher
Trillion
Baguette
Radiant
Rough gemstones
Personal order
Technologies
Hydrothermal method
About
History
Certificates
FAQ
Blog
Science
Contacts
info@tairusgemstone.ru
More products
Sapphire Cushion
$
205.00
$
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Chemical formula: Al2O3
Crystal system: hexagonal
Mohs' hardness: 9
Density (g/cm3): 3.57-4.00
Refraction index: 1.766-1.774
Color: dark blue, blue
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