I purchased my first love ring yesterday I got the classic one in yellow. I was between sizes 48/49. I chose the 48 since I didnt like it slidding up and down my finger. I wore it in my sleep and woke up with sore finger and cant hardly take it out. My question, how strick is Cartier when it comes to exchange? This is the first ring I bought for myself and obviously not knowledgeable of factors to consider.. I live in Honolulu so its always warm temp. It make sense now why the 49 felt so loose in the store than the 48 because of the strong aircondition the boutique have