It's always good to know your lobe size — the length from your piercing to the edge of your ear lobe or helix. This measurement will serve as a reference for you when looking at earring sizes and dimensions.
Measure your lobe size with a straight ruler and note it down in centimetres or millimetres.
Stud earring sizes can vary from 0.25-4cm. In general, a 1cm (0.39") stud may cover or sit on your earlobe comfortably.
Diamond studs:
• Measured by carat weight and not size in cm/mm
• The weight indicated is per pair, not per stud unless otherwise noted.
• Depending on the cut, the stud size/dimensions can vary. As a general guide, diamond studs range from small 0.25ct.w per pair, measuring ≅0.32cm, to large 2.00ct.w per pair, measuring ≅0.65cm.
Drop earrings:
In general, your comfortable length may be around 4-6cm (1.5"-2.3"). A drop pendant earring of 7-9cm (2.5"-3.5") may reach just below your jaw line or half-way down your neck.
• Lengths start from your piercing and can go up to 18-20cm.
• The best way to know what size is best for you is to measure, using a ruler, from your piercing to your preferred length.