Nereus - Black Ceramic
Estimated to ship in 3–5 weeks. Timing varies slightly by design. Delivery time is additional.
Sizing & fit
For the most accurate fit, have the intended finger measured by a jeweler using a band close to this width.
Read the sizing guideShipping & delivery
Estimated to ship in 3–5 weeks. Timing varies slightly by design. Delivery time is additional.
Shipping charges and options are shown at checkout.
View shipping policyReturns & support
We offer free ring resizing. Ring refunds are unavailable once ring parts have been ordered for your order or we have started making your ring. If you need a resize or have an order question, contact us with your order number. See the full policy for other eligible in-stock returns.
View return policy Get help with an orderNereus
"Like the depths of the sea—calm, powerful, and endlessly captivating."
Dive into the unknown with our Nereus line, inspired by the mythic sea god and brought to life through vivid ultramarine blue opal inlays. Each ring shimmers with shifting tones of deep ocean blue, mirroring the tide's motion and the mysteries below the surface.
Whether you're honoring your connection to the water, marking a personal milestone, or choosing a unique wedding band, Nereus is designed to leave a lasting impression.
Material: Black Ceramic
➤ Bold Contrast
The deep black ceramic band creates a dramatic frame for the glowing ultramarine opal. This version of Nereus is striking, modern, and scratch-resistant—perfect for those who prefer a bold, clean aesthetic.
How It's Made
Here's a quick video that shows what goes into making our rings. We hand craft each ring in house made specifically for you. We use the highest grade carbon fiber, ultra pure epoxy that has been cured and post cured for maximum strength, super bright glow and high grade materials across the board.
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We have a video of clips of different things we've all accomplished in the Rune and Carbon Fi shop this last year. Check it out!