Natural Extra Fine Black Onyx - Emerald Octagon Flat Buff Top Cabochon AAA+

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Gemstone Report

Natural Onyx
Species: Chalcedony
Shape/Cut: Emerald Octagon Flat Buff Top Cabochon - Single Bevel - SBBT
Quality: AAA+
Clarity: Clean +
Color: Extra Fine Black
Polish: Excellent
RI: 1.535-1.539
Specific Gravity: 2.6
Hardness (Mohs): 6.5-7
Treatment: Dyed (Standard)
Origin: Brazil

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