Rings
Measure the inside diameter of a ring that fits you. 16.5 mm is approximately Indian size 12, 17.3 mm size 14, 18.1 mm size 16, and 18.9 mm size 18.
Chains
40 cm sits close to the neck, 45 cm near the collarbone, 50 cm below the collarbone, and 55–60 cm at the upper chest.
Bracelets
Measure your wrist snugly and add 1–1.5 cm for a comfortable fit. Add up to 2 cm for a relaxed fit.
Product-specific measurements take precedence over this general guide.