Size Guide


All our necklace chains come with adjustable lengths, with at least 2-3 adjustable length options. Please check the specifications of each item for its lengths and dimensions.


GENNUU earring dimensions have been specifically designed to fit a variation of earholes and ear types.

All studs are at least 6-8 mm in length to fit both standard earholes as well as piercings, and come with our signature GENNUU cylinder screw-back to ensure they can be securely fastened. 


Your ring should fit your finger comfortably, fitted enough so that it will not fall out ,but loose enough to slide over your knuckles. 

Note that the circumference and diameter measurements match the inside edge of the ring. We use SG/CN/JP for ring sizes.

To measure your ring size:

  • Cut a small piece of string, thread or ribbon
  • Wrap it snugly around your finger for an accurate measurement, but ensure it can slide over the knuckle portion
  • Measure the length of the string with a ruler, then match it with the circumference guide below to find your appropriate ring size