If you have the money, go to a real jeweler. The stuff in hear is as cheap and low quality as it can get. They "claim" to be the best, but only if you have an extremely low budget.
They sell you jewelry that has been on display, with scratches and etc. Pretty crappy and low quality. Read fellow Yelp reviews below. Don't waste your time or effort. The sales staff is dismal and very un-educated and far from professional.
If you can afford high-end jewelry, head out to Westlake and Bay Village to quality family-owned jewelry stores such a Vivid Jewelers or Kleinhenz.