This ring resembles thick rope wrapped around itself 4 times.  The rope is 3.3MM thick and as it circles the finger it shows its dual finishes to perfection: high polished finish, combined with an oxidized finish.  
 
It is created using a process called lost wax process, or cire-perdue in French.  More than a ring, you're wearing a sculpture because that is what a wax cast mold creates.   
 
Superb skill and artistry translate to pure comfort.  Wax casting is not for everyone, only those with the skill and patience to make an individual mold for each individual ring.  A wax mold is hand-made, then the hot, liquid sterling silver is poured into it.  This process then melts away the mold, destroying it.  What is left is a sterling silver sculpture of the mold.  A new mold is then made to make another ring, and so on.
 
Common on every continent except Australia, the lost-wax method dates from the 3rd millennium BC and has sustained few changes since then.