Mikimoto Pearl Stud Earring - beautiful luster. I purchased these preowned when I was in Japan a couple of years and I haven't worn them much b/c I think they're too large for my ears -- so I've finally decided to sell them. Specs: - 7.5 to 8.0 mm (one is appro 7.7 mm and one is approx 7.8 mm) - 18 K Yellow Gold - Earring post s hallmarked with an "M" in a shell (NOTE that 18 K is not on the earring post) - Earring back is hallmarked with an "M" in a shell and "18 K" I am a private seller so all sales are final - please ask questions before purchasing. Will ship insured within the US.