? Oscar de la Renta Brooch

Bonjour , This brooch has Oscar de la Renta on the back but does not look like any Oscar de la Renta items I have seen before.
Do you think it is fake or will it have been a gift, when purchasing something else. I will wear it anyway. It is a pretty little brooch.

 

Pretty brooch. We do not authenticate here.

 

Thanks Deborah, No I wouldn't expect it to be authenticated. I just wondered if anyone has seen anything like this by Oscar de la Renta. The company usually does tassels and shiny stone or shiny gold coloured costume jewellry, not seen anything like this before. Jewellry isn't really my thing but if I see something I like, I pick the odd thing up at vide greniers.