I am the biggest worrier when it comes to bangles. I carefully inspect new bangles to make sure I know if they have any scratches or chips beforehand, so I know if I need to be careful. I must say, it’s never made a difference. Your bangle looks thicker than my princess cut matcha, and that bangle has been just fine. I must mention my work desk is glass, and I’ve banged it a few times. Not very hard, but enough to worry. And it’s in the same condition as when I received it. I’d say not to worry. I’m currently wearing a thicker one but with some oblivious hairlines/crack lines. It is a VERY tight fit (49 mm) and sometimes I don’t use lotion to get it on, and it’s been just fine. I think they’re sturdier then we give them credit.
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This one up top is the bangle with a bunch of hairlines/crack lines. And she’s just fine. I don’t have a name for her yet.
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This is Matcha. As you can see they’re very thin. And I’ve had no problems so far. Yours should be just fine