Size guide

Free shipping on all orders over €79,- within the Netherlands

Free shipping on all orders over €79,- within NL

Size guide


These are our standard lengths in de Necklaces collection. It is possible to customize your own favorite length of chain. For more information please contact our Customer Support: Please be aware that custom sizes are not eligible for return, exchange or refund. 



BY1OAK ring sizing is based on the inner diameter of our ring in millimetres. Refer to our measuring chart in our guide below. We recommend purchasing a ring-sizer if you are not sure. You can buy a ring sizer here.