It's possibly a stress fracture. Was the cymbal being stored with other cymbals pressing strongly against it? That pressure can cause a stray crack that doesn't follow the grooves, often near the bell as with yours.
I had a few cymbals and hats crack that way because I transported them improperly.
Neither a cymbal smith nor metallurgist am I, b ut I'm thinking playing would cause it to break along a lathe line. To me that looks like a fault in the metal. back to the store for a warranty check, or a photo by email to the manufacturer.
This I have never thought about. Definitely food for thought. I do tend to clamp them down quite tightly for transporting both in vans & aircraft. I do use foam liners between cymbals & the clamp is plastic. I will loosen it off from now on & see what happens.
The damage is more a case of the bells of different size cymbals not nesting with each other, with the bell pushing against whatever part of the adjacent cymbal it touches. In a hard case with a single post, the cymbal bells align and it shouldn't be an issue.
My damage came specifically from a various size cymbals - 14-22" - being slipped into a fairly tight slot and pressing against each other.