The Square Armor Ring &
Why Square Rings Work

When we first introduced the Round Armor Ring, I knew we were onto something. Designed to feel like a metal hug for your finger, albeit a powerful, badass kind of hug, it quickly became a favorite among CMD's boldest statement makers. And almost immediately, people started asking me the same question: “Can you make this in square?”

Of course, square rings weren't actually new territory for CMD. I've been designing them for years, and they've become one of the signatures people associate most with my work. They're architectural, a little unexpected, and almost guaranteed to start a conversation. What often surprises people most, though, is how comfortable they can be.

The Square Armor Ring takes everything I love about square rings and turns the volume all the way up. It has the same commanding presence and satisfying weight as the original Armor Ring, but its clean lines, broad planes and deliberate edges give it a personality entirely its own.

If you're already a square-ring person, you probably understand exactly why I had to make it. If you're not, this might be the ring that converts you.

Why Square Rings?

I've always loved playing with geometry in my designs. Round rings are timeless, but changing the silhouette to a square immediately makes a piece feel more sculptural and architectural. On the hand, that slight shift in shape creates an entirely different visual language.

Square rings are also fantastic conversation starters because they're still unexpected enough that people notice them. I can't tell you how many times someone has tried one on at The Ring Bar, a Pop-Up or Open Hours and immediately looked at their hand differently.

And then comes the surprise: “Wait, this is actually really comfortable.”

That sounds counterintuitive until you wear one. A well-designed square ring isn't four sharp corners squeezing your finger. The interior shape, proportions and softened geometry allow it to sit comfortably while giving the exterior that clean, graphic silhouette. Some people even find that a square ring rotates less on the finger than a traditional round ring, which can be especially appealing with larger statement pieces.

That's one reason square rings have become such an important part of the CMD design vocabulary. They feel unusual without being impractical, and once someone discovers that they love the shape, they often start building an entire square stack around it.

The Square Armor Ring Takes It Further

The Square Armor Ring is crafted in solid sterling silver and weighs more than 23 grams. It's available in two widths, 12mm and 15mm, so both versions have serious presence. We kept all the grit and grace of the original Armor and gave it a little extra edge, quite literally.

With a ring this substantial, changing the silhouette from round to square completely changes how the metal reads on the hand. The broad face becomes almost like a tiny piece of sculpture, while the square profile makes the whole design feel especially strong and intentional.

Like the original Round Armor Ring, this piece was designed for someone who loves jewelry with some heft. If your jewelry philosophy leans toward more metal, please, you're in the right place.

12mm or 15mm Square Armor Ring?

The 15mm Square Armor is the boldest option, while the 12mm gives you the same strong silhouette in a slightly more wearable width for many hands. Neither one is subtle, and that's exactly the point.

Finger length and the amount of space between the base of your finger and your knuckle make a difference when you're choosing a wide ring. I happen to have quite a bit of real estate there, so I can wear the 15mm version and still stack additional bands with it. Someone with shorter fingers may find the 12mm feels more balanced, or may prefer wearing either width entirely on its own.

Because these are wide rings, fit is especially important. We generally recommend sizing up approximately half a size, but your ideal fit can depend on your finger and how the ring sits below your knuckle. Our sizing tools are a great place to start, or you can book an appointment and we'll help you figure out which width and size make the most sense for your hand.

If you're trying to visualize the difference between 12mm, 15mm and some of our narrower stacking bands, my guide to ring widths is another helpful resource.

How to Build a Square Ring Stack

Once you fall for square rings, stacking them is where things get really fun. The clean lines create this incredibly satisfying layered effect, especially when you play with different widths, finishes and metals.

Personally, I love stacking the 15mm Square Armor Ring with a 4mm wide 14k gold square band or a 2.5mm wide gold square stacking band. That narrow line of gold beside the huge expanse of sterling silver creates exactly the kind of contrast I love.

You can also build an entire square stack from pieces with very different personalities. A substantial statement ring can sit beside slim stacking bands, diamond-adorned Special Occasion Bands, or other architectural square designs. The shared geometry keeps everything feeling intentional even when the metals, widths and textures vary.

And despite how much I love a serious stack, neither the 12mm nor the 15mm Armor needs any backup. Sometimes one giant hunk of silver is exactly enough.

Can We Customize It? Absolutely.

One of my favorite things about such a substantial design is how much possibility it gives us. If you're wondering whether we can make an Armor Ring in solid gold, add diamonds or personalize one with initials or another meaningful detail, those are exactly the kinds of ideas I love talking through.

A square ring also gives us these wonderful flat surfaces to work with, which opens up interesting possibilities for stones and other details. For something beyond the standard sterling silver Square Armor Ring, book a virtual or in-person appointment with me and we can talk through materials, proportions and what you're imagining.

Handmade, Hypoallergenic and Badass

Like every CMD piece, the Square Armor Ring is designed in Asbury Park and handmade in our Upstate New York production studio. The standard design is crafted in solid .925 sterling silver and is available in your choice of a matte or shiny finish.

Each ring is cast, shaped and finished by hand. That substantial amount of silver gives it the grounding weight that makes Armor feel like Armor, while the square geometry gives the design its unmistakable edge.

Square or Round?

There isn't a better version, just a different personality. The Round Armor Ring has that classic, substantial curve, while the Square Armor Ring feels more graphic and architectural. Both are made for people who aren't looking for their jewelry to disappear.

If you'd like more of the story behind the original design and why I started calling jewelry my daily armor in the first place, you can read When My Daily Armor Became a CMD Ring Design. That story is about where Armor came from. This one is about what happened when we gave it four sides.

For me, Armor is the kind of jewelry you reach for when you want to feel a little stronger, whether you're heading to work, going out to dinner, getting on stage or folding laundry at home. It's substantial, tactile and impossible to ignore.

So, which one is calling your name: 12mm or 15mm? Square or round?

SHOP THE SQUARE ARMOR RING
or
SHOP ALL RINGS

With love and silver,
Colleen

 

© Colleen Mauer Designs. All rights reserved.
Published: June 20, 2025
Updated: August 26, 2026