To claim for lost bracelet on insurance

[IDontLikeMondays88]

It cost £360. I’d need to pay an excess of £100.
will it impact on future premiums if I claim

As an ex claims manager....that's what insurance is for (provided you bought the extended cover usually called personal possessions or something similar otherwise lost items aren't covered)
It shouldn't affect next year premium provided its your only claim for a while...

Thanks for the insight