I am ordering crystals for my daughter's freeskate dress. Anyway... I can't remember if the 5 mm are good sized crystals or not? I ordered some 5 mm crystals last month, thinking they were the larger, only to discover that either the seller sent me the wrong size OR the larger crystals I already have are 6mm. I honestly don't remember ordering 6mm crystals, so I swear the larger stones I have are 5 mm! The 5 mm stones come in a gross so I would prefer ordering like that. The larger stones come in sets of 36 or 72. I don't know if this makes any sense... lol