LetÂ´s see, thatÂ´s a Venomous Circlet of the Magus, socketed by Larzuk (and got 2 sockets, which happens 1/2 the time). Sweet!
Venomous is alvl 60, and circlets have an inherent magic level. That means it needs to get item level 57, which means that the character should be at least level 62 to be certain the ilvl is high enough. If you gamble Coronets instead (which is quite a bit more expensive), a level 57+ character will be enough.
EDIT: OMG, I just checked the odds that a magical ilvl 57 circlet will get your desired prefix + suffix. 1 in 26246!