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Green Glow Ring with Titanium exterior and a center glow stripe.

    (129 reviews)

$ 289.00$ 289.00
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    Lifetime warranty

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The Titanium Fibonacci Ring

1. High-Quality Titanium
The same material used in Tomahawk missiles, we use only the highest quality titanium designed and cut in our Brooklyn workshop.
2. Exterior Stripe
The exterior stripe design is based on the proportions of the Fibonacci Sequence.
3. Custom Glow Polymer
We use three times as much strontium aluminate in our glow polymer as our next nearest competitor to ensure the brightest glow and longest glow time.
4. High Performance
Light, strong, and scratch-resistant, the Titanium Fibonacci Ring ring is tough enough to withstand any adventure, and its clean profile fits in just as well at the office as it does in the outdoors.
  • Exterior
  • Interior

Exterior


MATERIAL

High-performance titanium

EXTERIOR STRIPE

Our custom glow polymer made in our Brooklyn workshop

WIDTH

6.5 mm

FINISH

Hand-polished to a matte finish
MANUFACTURER
Carbon6 — made entirely in-house at our Brooklyn workshop

Interior


INTERIOR PROFILE
Our signature comfort-fit, a more exaggerated comfort fit that makes your ring more comfortable and less likely to ever get stuck
MATERIAL
Custom glow polymer made in-house at our Brooklyn workshop

Cut from high-performance titanium with a glowing comfort-fit interior as well as a glowing exterior stripe, the Fibonacci ring is designed according to the Fibonacci sequence.


How We Make It

FAQs

What makes it glow?
Our glow rings are made with a non-toxic, naturally occurring material called strontium aluminate. We use three times more strontium aluminate (aka, glow powder) in our proprietary glow material compared to our next nearest competitor to ensure our rings have the brightest, longest-lasting glow on the market.

To make your ring glow, you can easily charge it with either sunlight (just leaving it on a sunny windowsill works great) or with the free mini UV flashlight we include with every glow ring order.
How long does it glow for?
Because strontium aluminate naturally glows an aqua-green color, those two colors will glow brightest and longest, since they are closest to the material's natural state. The glow usually last for one to two hours. The further you get from the material's natural state, the shorter the glow time. Blue is in the middle with approximately 45 minutes of glow time, and orange and purple glow for the shortest amount of time at about 15 minutes. Of course, your ring can be quickly charged again in about 10 seconds with the included UV flashlight whenever you want a brighter glow.
How durable is it?
We carefully handcraft each ring we make to last a lifetime, and we stand behind our products unconditionally. If a problem should ever arise with the quality of your ring, we will be happy to replace it.
How do I find my ring size?
Don't know your size? No problem. Just wrap a piece of string or a strip of paper around your finger, measure it with a ruler, and use our handy size chart to find your size. All of our rings are sized in standard American sizes. 

Because we give our rings a more pronounced comfort fit on the interior to make them more comfortable and less likely to ever get stuck, if you are between sizes, we recommend rounding down.
Made in USA
All of our products are handcrafted 
entirely in New York
2,300+
5-star reviews from verified customers on Trustpilot
100% Guaranteed
We stand behind our products. Should you ever have a problem with its quality, we'll fix it.

Carefully Designed

We design our products in-house at our Brooklyn workshop, carefully considering every line, curve, and material to make sure our rings are not only beautiful and durable, but also safe and more comfortable than any other ring you'll ever own.

Handcrafted in Brooklyn

All of our rings are made entirely in New York. We have our gold rings cast in Manhattan's famous jewelry district, then we hand-finish them at our Brooklyn shop. All our other rings are made entirely in our Brooklyn workshop. We even make some of our raw materials—including our forged carbon fiber and our glow material stock—in-house at our shop to ensure the highest quality.

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