If you're not sure what my ring names mean, read the explanation on my FAQ page. Important Note! Some ring suppliers who list millimeter sizes are actually selling inch sizes. If you're trying to match existing rings that you already have, please ask me if that supplier uses true millimeter sizes or inch approximations. If I don't know the answer, I'll ask you to send me one of each ring size that you're trying to match. Right now I only have rose gold fill wire in 22ga. Other sizes will be added over time. Be sure to let me know if there's a gauge that you'd like to see next. Rose Gold Fill - Millimeter Sizes mandrel size ring   name     Price per Troy Ounce 2mm 2M22gfr $85.22 2.25mm 2.25M22gfr $85.22 2.5mm 2.5M22gfr $85.22 2.75mm 2.75M22gfr $85.22 3mm 3M22gfr $85.22 3.25mm 3.25M22gfr $85.22 3.5mm 3.5M22gfr $85.22 3.75mm 3.75M22gfr $85.22 4mm 4M22gfr $85.22