I think 3mm round wire section is still my favourite type for the wedding band rings. Still classic and comfortable but round and edgy and more sophisticated in total. More curved surface of the wall to reflect the light. It starts by barely touching the finger but then widens up and narrows again the further from you it goes. So much beauty in the simple but yet not used so much shape. Rose, Yellow or White gold 18k (75% of gold in alloy) and if fairmined even better.
Husband was playing piano downstairs, the wife was playing with the rings with the beautiful light on the Lemon street in the south of Barcelona. Listen with the volume up, such a pleasant combination.