My partner bought me a Tanzanite and Diamond ring from TJC and I loved it. Unfortunately we had a lot of problems having it altered and it being delivered to the incorrect address, then after a few months the Tanzanite fell out, luckily it happened as I took it off to wash dishes, had I left it on I would have lost the stone. After all the problems we had in the first place we decided to take it to a reputable jewler who said although the stones were good the shank was inferior and probably bought in from abroad, the ring cost almost £1000 and the work to repair it almost £300. TJC would not help with the extra work costs as we introduced a third party, but at least I have a secure ring now. We will never buy a considered purchase from them again. The customer service is diabolical.