Platinum Promise Rings, grown in light.
A quiet promise in a lasting metal. These platinum promise rings are slim bands lined with lab-grown diamonds, built to be worn every day long before any engagement. Most carry round stones; one alternates princess cuts with rounds in a channel. Each design lets you set the total carat weight.
Rows, stations or channels
- Half eternity: round stones on shared prongs across the top of the finger.
- Pavé stations: small hexagon bezels spaced along a pavé band.
- Channel set: princess and round stones alternating between smooth metal walls.
- Three-row pavé: a wider band covered in small stones.
Choosing a carat weight
Total weights run from 0.35 to 1 ct tw depending on the design. A lighter weight keeps the ring slim and simple to wear beside a watch or other rings. A heavier one fills the top of the band and reads as a ring in its own right.
The case for platinum
Platinum keeps its whiteness without any rhodium coat, and the metal is dense and gentle on sensitive skin. It takes on a soft patina where it rubs against other rings, which a polish can brighten whenever you like.
Wearing it now and later
A promise ring can sit on either hand. Many people shift it to the other hand when an engagement ring arrives, or stack it beside the new ring. To keep the lab-grown diamonds bright, brush the band gently in warm, soapy water now and then.
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.
