Oscar de la renta sunglasses is a famous brand so it shall be not difficult to find it in a website, the price is different when design and fuction different, try to check here
Of course please kindly note that there might be some dishonest web suppliers selling fakes, so just keep aware and enjoy your web shopping journey. Wish you find it satisfying.
I just search them online and find there are several sites who provide oscar de la renta sunglasses. But their prices are differently from different websites and each type of oscar de la renta sunglasses. Most of them are around $100. Here are some links provide oscar de la renta sunglasses: https://shopping.yahoo.com/sunglasses/oscar-de-la-renta--brand/
As a matter of fact, the founder of the brand established it in New York in 1973 in hope of that he could create a miracle within the fashion circle. And yes he really did, the brand is now renowned for its prime quality and a wide array of products including sunglasses. Typically, a pair of their sunglasses will cost you as much as one thousand dollars or even more. You can get them in some large stores or just buy them through mail order on their website.