Au3 Goldsmiths design and manufacture jewelry with high quality materials. All our jewelry is made by our talented goldsmiths in Helsinki, Finland. We design jewelry and jewelry collections. We mainly manufacture jewelry to order, the model pieces can be seen at our store in Unioninkatu 27, Helsinki.

When you find the jewelry of your dreams, you may place your order at our store in Helsinki or make your purchase safely here in the Au3 Online shop.

PS. Au3 is global! We deliver our jewelry almost everywhere in the world.


We mainly manufacture our jewelry to order. After you have placed your order and paid your purchase, one of our skilled goldsmiths will begin to work on your jewelry. You will be notified when the jewelry is ready to be collected at our store. We also deliver our jewelry globally using safe and insured mail.

It will take around 4 to 6 weeks to make the collection jewelry ready. The timeframe for special edition jewelry or unique personalized pieces is longer, depending on the details of your order.

We provide a certificate of authenticity for the materials and for the jewelry designed and manufactured by us at Au3 Goldsmith.


Ordering a ring requires measurements of the finger. The measurements can be taken by us at Au3 Goldsmiths store in Helsinki, or at any professional goldsmith store with customer service.

You can also use the ring size chart (link below), which helps you to determine your ring size. At Au3 Goldsmiths we use the diameter (mm) in the measurements.

If you are unable to visit a goldsmiths store to check your measurements, you can also get guidance for measuring your finger at home (link below).

If the size of the ordered ring doesn’t fit, we can make ring reductions and enlargements. We offer free resizing for half size up/down for our Online shop customers. Read more.


Please don’t hesitate to contact us in any case concerning jewelry! If you are not able to contact us, you might also find answers to the most frequently asked questions here!


Unioninkatu 27, Helsinki  |  |  +358 9 436 50090