Hanusa Design Mathematical Jewelry

10/14/2026

Get while the gettin's good!

The Hanusa Design website has been restocked and reflects actual inventory. Some NEW and UNIQUE pieces have been added.

I will no longer be fulfilling custom metal orders and everything that is in stock is on the website. Once they're gone, they're gone.

As a thank you for supporting me for close to 10 years use the "thankyou" discount code for 10% off everything at hanusadesign.com.

08/05/2026

At Mathematical Association of America Math Fest? So is Hanusa Design Mathematical Jewelry! Stop by Booth 321 all the way at the back of the Exhibits! See you today, tomorrow, and Friday!

07/26/2026

Some life news: I am planning to step back from Hanusa Design in the coming months. It has been a wonderful ride over the past nine years: so much learning, growing, and meeting people from all around the world who appreciated the jewelry I designed. At the same time, as I start my sabbatical year and enter into a crossroads, I want to focus my attention in new directions.

If there is someone out there who is particularly interested in learning about the mathematical jewelry business and wants to work with/own an established brand, I will consider partnerships or sales. Otherwise, I intend to wind down the retail part of my business by the end of 2026. Reach out to chris hanusadesign com if you want to start a conversation about this or if you would like to discuss mathematical retail entrepreneurship.

I will be attending MAA Math Fest in Boston in early August 2026 with my inventory for people who want to peruse the stock I have on hand. Afterwards I will be cataloging the remaining inventory on hanusadesign.com and set up a going out-of-business sale for whatever remains.

At the current time I still plan to supply retail clients (museums and independent shops) with wholesale items on demand.

On to new adventures!

03/10/2026

Thanks for the feature nysci!

for the win 🔢➕✖️📐

New York Hall of Science

12/09/2025

11/23/2025

Hanusa Design mathematical jewelry is excited to share our collaboration with the gift shop at the New York Hall of Science (), an amazing science museum located right here in Queens, NY. As of Fall 2025, Hanusa Design owner Christopher Hanusa () is featured as a local artist in the shop!

There is now a wide selection of Hanusa Design jewelry on sale in the nysci Science Shop. Each piece has a mathematical significance, was 3D printed in nylon, and dyed in bright colors. If you're not nearby, you can shop online at shop.nysci.org.

Many museum shops are run by a giant conglomerate, but not the nysci Science Shop! Through this collaboration I've worked directly with Sanjay Lakhani, the retail manager, who curates his store with hand-picked gift ideas. You should visit the museum and then stop by the store to see the wide selection.

11/20/2025

Its high-time for pi-time! Check out these mini pi earrings just waiting to be assembled. So cute! So mini! (0.5 in / 12.6mm wide) So many!

Order yours today: hdsn.us/NE200

11/19/2025

The merkaba has long been a mystic symbol. At its heart is the intersection of two tetrahedra. Here is my take on this classic form, replacing the sharp lines by soft curves.

Merkaba Earrings available now:
hdsn.us/NE221

11/18/2025

I know, I know, it's hard to improve on the cube. But hear me out! What if you interlock two wireframe cubes together? Sure, it's crazy. But wait there's more! What if you attach a third one? And you can wear them! On your ears? What?!
hdsn.us/NE210

11/16/2025

Forbidden subgraph earrings - wear a theorem on your ears! Kuratowski's theorem says that a graph is planar if and only if it contains neither a K5 nor a K3,3 as a subgraph. Here are those two forbidden subgraphs.
Available at hdsn.us/NE230.