What are some bad assumptions about a jewelry store
Some bad assumptions are that they are known to sell jewelries at exorbitant prices. They are also know to make imitations of the original jewels and sell them to unsuspecting clients.
fake jewelry, insane prices,bad service
Take your diamond ring for a cleaning and they switch your diamond for cheaper less valuable one
That you are saving money buying jewelry, bad assumption. That their baubles are of higher quality than anyone else, bad assumption.