Well, generally speaking, I will suggest you buy them on online shop, for they are cheaper than the real stores. For example, you can buy them at https://www.shadesdaddy.com/chloe-sunglasses-s/484.htm. They will cost you about 176 dollars. Of course, it all depends on what kind of sunglasses you choose. They are very good for you. Besides, they are made in Italy. Also, you should know that they can provide 100% UVB and UVA rays protection, so they are used wildly by many people who like sport outdoor. Of course, if you are a sports lover, it will be beneficial for you. And when you buy them, there will come complete with certificate of authenticity, protective case and cleaning cloth. Anyway, just have a try.
You can search out chloe sunglasses through internet. I just search online and find there are several websites provide chloe sunglasses. And the prices are different at each websites. You can find the cheapest chloe sunglasses about $90. But you can also see some chloe sunglasses need Over $300. Here are some links: https://www.shopstyle.com/browse/sunglasses/Chloe
My friend just bought the chloe sunglasses last week for $ 185 from the online store. You could go to the online store to have a look. You could go to this place, www.shadesdaddy.com. There are many types of chloe sunglasses which have different colors, different designs and different materials. You could base on your actual needs to choose the suitable one.