AltGems
Updated as of June 2026

Onyx necklaces

A sleek black chalcedony traditionally worn for grounding, strength, and protection against negativity. Here is how it works in necklaces specifically.

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Choosing a Onyx necklace

Necklaces sit protected against the body, so even softer stones work well. For color, look for an even black tone, and match the metal to your skin tone and budget.

Best metals and settings

Onyx pairs well with sterling silver, white gold, yellow gold. An open setting lets more light into the stone. Compare options in our metal guides.

More on this stone: Onyx overview, price guide, and care guide.

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Frequently asked questions

Is Onyx good for a necklace?
Necklaces sit protected against the body, so even softer stones work well.
How much does a Onyx necklace cost?
The stone itself runs about $3 to $40 per carat, and the finished necklace price depends on the metal and setting. Onyx pairs well with sterling silver, white gold, yellow gold.
What metal suits a Onyx necklace?
Onyx looks best in sterling silver, white gold, yellow gold. See our metal guides to weigh durability against cost.