all home contents people i've tried have an upper limit that doesnt cover the ring and the ones i found on google dont look the most genuine! I wondered if there was a bespoke company that were more reputable?!
If your still looking for cover I would suggest you add this item as a 'specified item' to your home contents policy. I work for an insurance brokers called Equity. Feel free to ring me on 01636 640562 for a quote. Rob Butters