I ordered the 4mm and the 5mm earrings. The sizing is way off! They both looked like they were at least 1mm smaller or even maybe 2mm. I do like the look of the rhodium plating so I decided to keep the 5mm and return the 4mm since the earrings seem to be good quality. I do not recommend this product because of the sizing. If you do decide to order this product I recommend ordering up 2mm.