We’re pearl workers and direct sellers (wholesalers). We can supply all of your pearl needs. About the pearls size, please use vernier caliper to measure them not ruler, or only see and guess. If the pearls’ size is more then 8mm 8.1,8.2… They will be named 9mm, if the pearls size more than 9mm (9.1mm 9.2mm) will be named 10mm…..