This was a custom wedding set that I made for a local couple. His (the wider one) is sterling silver with a 14k gold lining. Hers is white gold with an 18k lining. She wanted to incorporate the diamond from her engagement ring and designed this setting based on another ring that I make with a plain cupped disk around the stone.
Vintage style Wedding Rings, Wedding Ring set, 14K yellow and white gold, Unique rings, Promise rings his and hers, Filigree wedding rings by WorldOfGold on Etsy https://www.etsy.com/listing/240319486/vintage-style-wedding-rings-wedding-ring