Is it haram to wear a necklace?

Salam, recently I got a gift of a Chain necklace, not gold with a pendant of Palestinian map on it. I am Palestinian and I’m proud to be and I want to be able to wear it. I also don’t look very arab so it sort of proves my identity to other Arabs and muslims. Because I like talking and associating with arabs and muslims more. Even as small as a smile of recognition. And please if you will answer I want actual hadith or ayah in the Quran saying so. Because I get it’s very easy to want to say it’s ok or not depending on culture or how it’s portrayed within our culture.