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Platinum Channel Set Lab-Grown Diamond Eternity Bands

These platinum channel set eternity bands hold round, princess cut or baguette lab-grown diamonds in a row between two smooth walls of metal. Most are half eternity bands with stones across the top, and a full eternity version runs all the way around. Some add bar dividers, plain walls or pavé details on the edges.

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10 bands
10 bands
Conflict-Free
Ethically sourced materials
Lifetime Warranty
Free cleaning & resizing
Free Shipping
30-day returns
Handcrafted to Order
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Finding Your Perfect Band

Profile & Width

From a slim 1.5mm to a bold 6mm — choose the proportion that suits your hand.

Comfort Fit

A gently rounded interior that slips on easily and wears beautifully all day.

Metal & Tone

Match or contrast your engagement ring in white, yellow, rose gold or platinum.

Matching Sets

Curved and contoured bands designed to sit flush against your ring.

Buying guide

How a channel setting works

In a channel setting the stones sit side by side in a groove, held by the metal walls on each side instead of prongs. Nothing sticks up to catch on clothing, and the edges of each stone are protected, which makes a channel set eternity ring practical for daily wear. Platinum suits it well: the walls stay strong and the white metal frames the row of lab-grown diamonds without changing their color.

Choosing a stone shape

  • Round: the most common choice here, with brilliant sparkle along the row.
  • Princess cut: square stones that fit together with almost no gap.
  • Baguette: long step-cut stones for a sleek, continuous line.

Half or full eternity, carat and price

A half eternity band has stones across the top and plain metal underneath, so it can be resized and sits comfortably next to an engagement ring. A full eternity band has stones all the way around and can't be resized. Most designs offer about 0.35 to 0.75 carat total weight, and the full range runs from 0.25 to 1.5 carats. Prices start from about $1,300, and most bands are between about $1,600 and $1,800.

Made to order

Each band is made for you in 10–15 days. Shipping is free on orders over $500, returns are accepted within 30 days, and one resize is free within 60 days of delivery. Full eternity bands can't be resized, so for those the one free size change means remaking the band.