Lab-Grown Diamond Infinity Necklaces

One loop, no beginning and no end. Each infinity necklace here sets lab-grown diamonds into the figure-eight curve: a pavé strand, a solitaire inside the loop, or infinity arms on a cross or heart. Choose 10K or 14K gold in three colors or silver, then the carat weight.

9 products

Pavé loop or a single stone

  • Pavé: tiny lab-grown diamonds trace one or both strands of the loop.
  • Solitaire: a lone stone rests in or above the curve, the most understated option.
  • Bezel pear: a pear-shaped stone joins the figure eight inside a smooth rim.

Crosses, hearts and teardrops

Several infinity pendants fuse the loop with a second symbol, such as a cross with looping arms, a heart, or a teardrop. Two meanings share one pendant, which makes them a fitting anniversary or milestone gift.

Carat weight and metal

Most designs offer from about 0.5 to 3 carats total weight, and a few go further. Yellow gold draws the loop as a warm line; white gold turns it into a thread of light; rose gold glows softly against skin. Silvadium, a tarnish-resistant sterling silver, keeps the price gentle.

Wearing an infinity pendant

An infinity pendant rests nicely near the collarbone and layers under a shorter chain. Remove it before a swim or shower, since chlorine and soap residue cloud the stones. A rinse in mild suds and a pat dry with a lint-free cloth restore the shine.

Ring questions, answered.

How do I choose an engagement ring?

Start with the shape she loves, then the setting style. Our gemologists can help you balance carat, cut and budget on a free video call.

Can I build my own engagement ring?

Yes — pick a setting, then a diamond, and review the finished ring before it goes to the bench.

Does the diamond price include the setting?

Diamond and setting are priced separately in the ring builder, and the total is shown before you add the ring to your bag.

How do I find my ring size?

Use our ring size guide, or order a free ring sizer — it arrives in 2–3 days.

Can I return or resize my ring?

You can return it within 30 days (a 10% restocking fee applies to resized or engraved pieces), and your first resize within 60 days of delivery is free.

Should I insure my engagement ring?

We recommend it. Every ring ships fully insured; once it is yours, a separate jewelry insurance policy covers loss, theft and accidental damage.

30

30-day returns

Return it within 30 days. A 10% restocking fee applies to resized or engraved pieces.

Free

Free shipping over $500

Insured, signature-required and discreetly packed.

60

60-day free resize

One free resize within 60 days on rings and bands.

IGI

Engagement rings

Every engagement ring diamond ships with its IGI or GIA report.