Got a call from this number and 4 other numbers the last 3 days. They all say "Sterling Jewelers". It's a scam. Don't pick it up. I have NEVER bought from them. And this number, along with these others have called my house before under different names. I keep a list.
Usually, a company is hired to handle several different companies debt collection calls. You may call back and it say "Kay" or "Jared's" or "Sterling". It doesn't mean it's a scam, it just means they handle several different companies.