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Our Products: Gemstone Species/Varieties > Black Onyx
Black onyx is dyed chalcedony. The treatment is stable and standard in the marketplace. With a hardness of 7 it makes a good jewelry gem.

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BO-2806J Black Onyx/Freshwater Pearl Necklace
Price $157.50
You Save: $17.50
BO-5086B Black Onyx and White Plume Agate Doublet: 14.6 ct.
Price $51.00
 
 
 






Standard Site Discounts: 5% off over $300; 10% off over $500 and 15% off over $1000
Discount code must be entered at time of checkout to receive your discount.
Over $300 - enter code "5" (no quotes)
Over $500 - enter code "10" (no quotes)
Over $1000 - enter code "15" (no quotes)

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