There are various ways of making these quilts so that would be the first choice you need to make. Acrylic templates are really the only way to go since this quilt with it's curves need precise piecing.
Here is a free pattern and fabric requirements:
https://www.simplicity.com/t-free-qu...ding-ring.aspx
Don't know why it takes you to the main page. Here is where it is located:
Home : Classroom: Quilting: Free Quilt Patterns: Double Wedding Ring