MIMCO Jewellery Size GuideSize Guide › MIMCO › Jewellery SIZE CONVERSIONS MIMCO Rings Size Chart Diameter US Size MIMCO Size 16.5mm 6 Small 17.35mm 7 Medium 18.2mm 8 18.9mm 9 Large 19.8mm 10 Size Bust Waist Hip XXS 72 55 82 XS 77 60 87 S 82 65 92 M 87 70 97 L 92 75 102 XL 97 80 107 XXL 102 85 112 Body Measurements (cm) -approx