Reserve for $99

Celestial

Would you still wear it if the battery died?

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The Orion diamond smart ring, lab-grown baguette diamonds across the top and three small sensors inside

Take a closer look.

A diamond smart ring: lab-grown diamonds across a slim titanium band, with a health tracker hidden inside.

Orion diamond smart ring, set with lab-grown diamonds
OrionBaguette-cut lab diamonds, channel-set across the top.Liquid error (snippets/celestial-launch line 45): comparison of String with 0 failed
Lyra diamond smart ring, set with lab-grown diamonds
LyraRound lab diamonds in two channel-set rows.Liquid error (snippets/celestial-launch line 45): comparison of String with 0 failed
Carina diamond smart ring, set with lab-grown diamonds
CarinaRound lab diamonds, pavé-set in honeycomb rows.Liquid error (snippets/celestial-launch line 45): comparison of String with 0 failed
Rhea diamond smart ring, set with lab-grown diamonds
RheaLab diamonds set flush into the band.Liquid error (snippets/celestial-launch line 45): comparison of String with 0 failed
The Orion diamond smart ring, a row of lab-grown baguette diamonds across a titanium band

Design

Wear it to dinner.
Wear it to bed.

Most trackers come off when you dress up. Celestial Rings are designed to sit beside the rest of our jewelry and look like it belongs there, slim and smooth enough that you never need to take it off.

Comfort

Designed for all-day comfort.

  • Slim and narrowThin and small on the finger, so it’s easy to wear all day and sleep in at night.
  • Your fingers rest on metal, not gemsDiamonds sit across the top of the band. Everywhere your fingers rest is smooth, rounded titanium.
  • Stays facing upThree small sensor domes on the inside keep the band from spinning.

Health

What it tracks.

  1. Sleep

    How long you slept, how restful the night was, and when you fell asleep and woke. See what gives you more energy, without a watch on your wrist.

  2. Your rhythm, every chapter

    From your first cycle through perimenopause and beyond. Follow your phases, check in on how you feel, and see it all alongside your sleep and temperature.

  3. Resting heart rate

    Measured quietly while you sleep, so the numbers reflect you at rest and you can see how your nights and days connect.

  4. Skin temperature

    A nightly baseline that learns your normal, so you can see when something shifts.

  5. Your normal

    Celestial Rings learn your own baseline over the first weeks, so changes are shown against you, not against an average.

Privacy

Your data is yours.

What your body tells your Celestial Ring stays between the two of you.

  • Never sold or rentedYour health data is never sold or rented to anyone.
  • No subscription for the coreCore features need no subscription.
  • Yours to see or deleteAsk us any time to see, correct or delete what we hold. Privacy policy

Tech specs.

Materials
A titanium band with a polished silver finish. Lab-grown diamonds across the top of the band only.
Size and fit
5.7 mm wide and 2.35 mm thick. US sizes 7 to 9. The band is wider than most rings, so go one size up from your usual. Free sizing kit for the waitlist.
Sensors
On the palm side of the band, with three small sensor domes that keep it facing up. Reads pulse, skin temperature and movement.
What it tracks
Sleep, your rhythm through every chapter, resting heart rate and skin temperature, shown against your own normal.
Subscription
Core features need no subscription.
Availability
Ships from 2027. The waitlist orders first.

Join the Waitlist

Celestial Smart Jewelry is in development. Final features and specifications will be confirmed before orders open. A wellness product, not a medical device; it does not diagnose or treat any condition.