My partner and I were in a similar dilemma, we’d looked at the usual high street jewellery stores and had come away underwhelmed. As a second time around I wanted something clean and modern without breaking the bank (My previous ring was traditional) Like you I started a search online and came across Samara James, what I liked was that you could pick a style and then pick a diamond to suit your budget, and thus started a lesson in diamonds, that is the 4C’s carat, cut, colour & clarity. Once researched I contacted them by phone to discuss what I wanted and then I took their advice ending up with the best cut, slightly smaller diamond than I’d originally selected, a good colour and clarity. Ordered over the phone paying a deposit and then my partner and I collected in person six weeks later, it came complete with a diamond certificate too. The whole experience was easy, enjoyable, less stressful on Andrew and rather educational.
Best of all though is that I really like my ring and it cost less than if I had gone high Street, 40% less, as for Tiffany’s you’re paying for a name and not necessarily the quality of the diamond.