Worn Close to the Heart

Lab-Grown Diamond Eternity Necklaces

An eternity necklace carries an unbroken circle of lab-grown diamonds, a pendant shape that stands for a love without end. Each eternity necklace here is a round circle pendant set with round lab-grown diamonds, in open, small, thin or wide versions. Choose white, yellow or rose gold, or Silvadium, a tarnish-resistant sterling silver.

Find Your Style

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16 necklaces
16 necklaces
Conflict-Free
Ethically sourced diamonds
Lifetime Warranty
Free cleaning & care
Free Shipping
30-day returns
Buy with Confidence

Finding Your Perfect Necklace

Find Your Length

From 16″ chokers to 24″ matinees — an 18″ princess length is the everyday favorite.

Chain & Clasp

Cable, rope and box chains finished with a secure lobster or spring-ring clasp.

Pendant or Tennis

A single solitaire for everyday grace, or a continuous line of diamonds for occasion sparkle.

Metal & Tone

White, yellow, rose gold, platinum or silver — choose a tone that flatters your skin.

Buying guide

Choosing the circle

The four styles differ in how much metal and sparkle they show. A thin circle reads delicate and layers easily with other chains. A small circle sits neatly at the collarbone for everyday wear. An open or wide circle shows more lab-grown diamonds and makes the eternity pendant necklace the main piece. If you plan to wear it daily, a smaller or thinner circle is the easiest to live with.

Carat weight and price

The carat figure is the total weight of all the lab-grown diamonds around the circle. Every design comes in 0.5 to 2 carats total weight, some start at 0.35 carat, and one goes higher. A larger total weight means bigger stones and a bolder ring of light. Prices start under $300 for the smallest option, and most are between about $750 and $800. Lab-grown diamonds cost far less than natural diamonds of the same size, so a fuller circle stays within reach.

Gold or silver

Gold designs come in 10K or 14K. 14K has a richer color, and 10K is harder and lower-priced. Yellow gold gives a classic warm look, rose gold a soft pink tone, and white gold a bright, cool finish that makes the lab-grown diamonds look icy. Silver is the lowest-priced metal and suits a first eternity piece or a gift.

Made to order

Each piece is made for you in 10–15 days. Shipping is free on orders over $500, and returns are accepted within 30 days.