Is 16mm the smallest ring size you do? Alternatively, is it possible to order a ring with a size lower than the minimum shown on the website?

Yes, 16mm is the smallest ring size we have. However, it is often possible for our team to make rings in custom sizes. Please leave your name, email ID, the ring you're interested in and the ring size you're looking for.I'll discuss this with the team, and we'll get back to you on this in the next 24-48 hours.