ring Ophiuchus for printable/cnc -no holes -size US and mm 5-15.7mm 6-16.5mm 7-17.3mm 8-18.2mm 9-18.9mm 10-19.8mm 11-20.65mm 12-21.7mm
-width 7mm -weight yellow gold 585 6.92 gr yellow gold 750 7.77 gr silver 5.26 gr white gold 585 7.32 gr white gold 750 7.92 gr