My boyfriend revealed to me he began ring shopping yesterday. He told me he went to Tiffany's first and the SA told him to check out cartier and de beers as well since it was his first time looking at rings. He then went to de beers and stated he was overwhelmed because of the lighting and sparkliness of everything in he store, so then he concluded maybe the lighting is meant to be misleading. He didn't have a chance to go to cartier since the cartier closes earlier than the other other two. He was wondering which out of the three is considered the "best" or has the best quality diamonds and rings. Which in your opinion is the best? Thanks in advance.