Definitely get the item/s looked at by a professional. Diamonique in the very beginning may not even have had ANY hallmark determining that it's a CZ. Also really early Affinity had no hallmarks at all~! I even have a Vincenza 14k early piece with no hallmarks whatsoever, not even a 14k~! And I know where that one came from and when because I purchased it myself from QVC..
I know this because I've sold quite a bit of my jewelry on eBay and was surprised that I could not find identifying marks on some of it.... even with a loupe....
*~"Never eat more than you can lift......" Miss Piggy~*