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Diamond is harder than onyx.
In order to determine how much black onyx is worth, the size of the onyx, overall condition, and purity needs to be determined. However, a small ring with a black onyx piece in it can be worth anywhere from $300.00 to over ten thousand.
Onyx is a black volcanic gem that is commonly worn in jewelry. The value of onyx is determined by the quality and size of the stone. Onyx stones can sell for tens or hundreds of dollars.
No.
$35 per pound
The Onyx looks nicer but diamond is more durable.
bout $20
Depend ring weight .
anywhere from $50 to ..well priceless (£36=$50)
i have a julius 10k gold ring with black onyx
it looks like a diamond but black
Yes, onyx is much more expensive than marble. This is because onyx is considered to be a much softer stone than other stones.