The 16g 5/16" diameter: The rings are stacked by 18g 1/4", 16g 5/16".
The 16g 3/8" diameter: The rings are stacked by 18g 5/16", 16g 3/8".
The 14g 5/16" diameter: The rings are stacked by 16g 1/4", 14g 5/16".
The 14g 3/8" diameter: The rings are stacked by 16g 5/16", 14g 3/8".
Click here , if you are interested in getting other design or different colored gold.