NEMESIS pairs tungsten with a cubic zirconia. The 8mm band frames the detail.
Engraved and shipped from our Texas workshop.
Shipping details · Returns & exchanges
Engraved in Texas
Personalized in our workshopComfort fit
A smooth interior profileLifetime sizing program
Here for the years aheadReady to give
A matching gift box included
The details make the difference
The details.
The difference.
The cubic zirconia is the focal point of NEMESIS. Take a closer look at the texture, edges, and profile in the product photographs.
- Material
- tungsten
- Design
- cubic zirconia
- Width
- 8mm
- Fit
- Comfort fit
A closer look
Character in the details.


From our customers
Real rings. Real stories.

A personal finishing touch
Your words.
Your meaning.
A name, a date, or a message that matters. Explore the engraving options for NEMESIS and make your choice personal.
Explore engraving options →How do I choose my size?
Use our ring size guide or ring sizer tool. The available sizes and widths are shown above.
What can I have engraved?
Choose from the engraving options available for this ring above, or explore our engraving service.
When will my ring arrive?
Visit our shipping page for current processing and delivery information.
What if my fit changes?
Explore the Aydins Lifetime Sizing Program and Warranty.
Full product description
The NEMESIS is a handcrafted black tungsten carbide men's wedding band, 8mm wide, with a channel of brilliant-cut CZ stones set edge-to-edge around the band and polished beveled edges. Built comfort-fit, inside-laser-engravable, and backed by our lifetime warranty - a ring built to outlast the job site, the gym, and everything else you put it through.
The Metal
Tungsten carbide is the hardest wedding-band metal made - roughly 4× harder than titanium and 10× harder than 18k gold. That's not marketing language; it's a measurable Mohs hardness of 8.5-9. In practical terms: the NEMESIS will not scratch from keys, tools, gym equipment, or daily contact with desks, steering wheels, or phone cases. It will look the same in five years as it looks the day you open the box.
The black tone isn't paint or coating. It's a physical-vapor-deposited (PVD) black finish bonded to the tungsten at the molecular level - the same process used on high-end watch bezels. It won't peel, strip, or wear through. The metal is also fully hypoallergenic and nickel-free, which matters if your skin reacts to other rings.
The CZ Eternity Band
The brilliant stones around the NEMESIS are channel-set cubic zirconia - a diamond simulant, not a natural diamond. We call that out clearly because a lot of bands in this category are marketed as "diamond" when they're really CZ; we want you to know exactly what you're buying. The optical quality is excellent: Mohs hardness 8.5, brilliant round cut, full fire and scintillation under light. Each stone is channel-set flush with the band surface so nothing catches on clothing or gloves.
The contrast of bright CZ against the black PVD is what sells this ring - white stones read sharper on black than they do on silver or gold, and the beveled edges frame the stone channel cleanly.
Who It's For
The NEMESIS is for the man who wants the look of a diamond eternity band in a dark, stealth palette - stones that catch light against a ring that doesn't. It pairs with a black watch, dark suits, or a modern minimalist wardrobe. If you want something bright or gold, see the LEGEND. If you want plain black, see our solid black tungsten bands. The NEMESIS is for the buyer who wants both at once.
Key Features
- Tungsten carbide construction - 4× harder than titanium, 10× harder than 18k gold, scratch-resistant for daily wear
- Hypoallergenic - nickel-free, safe for sensitive skin
- Black PVD finish - molecularly bonded to the tungsten core, will not peel or strip
- Channel-set CZ eternity band - brilliant-cut diamond simulants (not natural diamonds), flush-set around the band
- 8mm width with polished beveled edges
- Comfort-fit interior - rounded inside for all-day wear
- Free inside laser engraving - up to 30 characters, any font
- Lifetime warranty + replacement sizing program - defect coverage and a replacement ring if your finger size changes (see warranty page)
- Ring sizes 7 - 15 (including half sizes)
Make it yours. Make it personal.
NEMESIS · $ 3,526.00 MXN
















