Lab grown diamonds differentiated by carat size in the selection make it easy for all target buyers like lab diamond traders, resellers, jewelers and prosumers to find needed carat sizes. From melee as side stones for daily wear to high carats as center stones for eye-catching jewelries, the lab grown diamond company strives to cover all sizes to cater customers’ preferences. 1 carat and 2 carat lab diamonds are suitable to stackable sets, birthstone jewelry and men’s cufflinks; 3 carat, 4 carat and 5 carat can be applied to bridal couture, watch customization and the like; large sizes over 7 carat are suitable to custom and investment jewelries. Buy loose diamonds in bulk by carat size now.