AltGems
Updated as of June 2026

Lab-Grown Diamond necklaces

Chemically identical to a mined diamond but grown in a lab, offering the same brilliance and hardness at a lower price and with a clearer origin story. Here is how it works in necklaces specifically.

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Launch offer: 5% off your first necklace with code WELCOME5
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  • Handmade in the USA
  • Made to order
  • Ships in 3 to 5 days
  • Gift-boxed
  • Satisfaction guaranteed
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Choosing a Lab-Grown Diamond necklace

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

Best metals and settings

Lab-Grown Diamond pairs well with platinum, white gold, yellow gold, rose gold. An open setting lets more light into the stone. Compare options in our metal guides.

More on this stone: Lab-Grown Diamond overview, price guide, and care guide.

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Frequently asked questions

Is Lab-Grown Diamond good for a necklace?
Necklaces sit protected against the body, so even softer stones work well.
How much does a Lab-Grown Diamond necklace cost?
The stone itself runs about $400 to $3,000 per carat, and the finished necklace price depends on the metal and setting. Lab-Grown Diamond pairs well with platinum, white gold, yellow gold, rose gold.
What metal suits a Lab-Grown Diamond necklace?
Lab-Grown Diamond looks best in platinum, white gold, yellow gold, rose gold. See our metal guides to weigh durability against cost.