frequently asked questions

Choosing the ring size

This is a chart that will help you to choose the correct size of your ring.

Metaformi uses sizing according to inside diameter of the ring in mm.

If you still need help, please contact us at

Jewelry care

Some of our jewelry is made from raw brass. Brass is a natural material (alloy of copper and zinc), which changes with time and exposure. We like its patina, but there is always a way with a little effort to bring back the shiny gold tone.

Here are some tips how to keep your jewelry shiny:

Keep your jewelry clean

Wash your jewels with mild soap and warm water and after – polish with dry soft cloth.

Polish it for more shine.

Use jewelry polishing cloth or what works even better – a cream for brass polishing. Put a thin layer on the surface and wipe it gently with soft cloth. Exclude the stone parts. Wash with warm water and pat with dry soft cloth.

Store it in a dry place

Brass can tarnish in response to moisture and air exposure – store your jewelry in a sealed jewelry box, the shine will last longer.

Please contact us if you have any further questions.