Real rose gold and real diamonds necklace

The gold is rose gold Diamonds are 100% real Paid 800 dollars for it at a designer brand jewelry store but I can’t remember the name no more, this is from years ago but I kept it good condition I’m going through divorce This a gift from my ex, So I want to get rid of it and get some money back for to get baby stuff So feel free to make me an offer Also have a real yellow gold ring in my listing