My partner and I are looking to buy an engagement ring and I have found somewhere online. I can’t see they have a shop though they do have premises in Hatton Garden. I have looked on Google maps and I can’t see the shop nor can I find much about the company on company’s house. They are a dormant company. How would I know if it is a genuine company / jewellers etc. They have plenty of google reviews and they are on Trust Pilot as a verified company but I honestly don’t know enough about jewellery to know if this is usual or not. Is there anything else I should be doing?