Sterling Silver - $50 USD
10K Gold - $542 USD
14K Gold - $840 USD
18K Gold - $1,220 USD

For Gold Rings :

* Yellow & Pink gold are available in 10, 14 and 18K. But White gold is available only in 10 and 14K.

* The price is the same regardless of the size of the ring and whether you choose more than one color of gold.
- 9.7 mm at widest point / 5.5 mm at narrowest
- 3.6 mm at thickest point / 1.7 mm at thinnest
- roughly 8.6g (silver) for US size 10
In the words of the creator of this ring,

"Threesome Ring is a puzzle ring for beginners.
It was designed and prototyped by Oskar van Deventer, see v=AbExOq0IiSI.
The ring is the simplest instance of the Bram Cohen ring-creation algorithm, see
The ring has a 180-degree rotation symmetry, which enhanced its looks and create a bit of confusion to find out which ring goes where."

So how did it end up as our latest 'New Release'?

Well, it's because Carl has always been a fan of rings with multiple metal colours.

When he came upon Threesome in a forum on he knew this was the perfect ring for the multiple-metal treatment, so contacted Oskar, who in turn contacted me.

The two of us then decided to make Threesome our next collaboration. Together with Carl we fine-tuned the design, Oskar modeled it, then I took the resultant 3D prints and did my thing, and hey presto!

The ring is quite heavy-duty, although not as much as Carl would originally have liked. In retrospect I feel like I erred on the side of moderation, so am already considering bringing out a significantly chunkier version.

The ring shown in the photos is US size 10.
These gold/silver combinations are available.
If you want to order any of these, please specify which one and we will send you a PayPal money request.
1 Gold band / 2 Silver bands
1 x 10K + 2 Silver - $216 USD
1 x 14K + 2 Silver - $316 USD
1 x 18K + 2 Silver - $444 USD
2 Gold bands / 1 Silver bands
2 x 10K + 1 Silver - $377 USD
2 x 14K + 1 Silver - $575 USD
2 x 18K + 1 Silver - $827 USD