Palladium Men's wedding band

I have lost my wedding band on Sunday night in 3 Arena during KSW 40 - plain matte men`s wedding band - nothing written inside.(possibly lost it the the toilet while washing of hands) It has big sentimental value to me - we only got married few weeks ago - appreciate any help on this. 2nd place that i could lost it is hotel Russell Court Hotel - same night as we stayed for one pint there and this the the place i noticed it is missing:(