If you're custom designing a ring, skip everywhere else and go straight here.
My fiancee and I were looking for wedding bands, and tried several jewelers in the area. D'Antonio and Klein is easy to miss because they have a smaller storefront. However, when you enter, there are people making and designing jewelry right behind the counter. My fiancee had very specific factors in mind for how she wanted her ring. Dennis took excellent care of us, showing her options and how they could go about designing it. She is 100% satisfied with her ring and it's exactly what she wanted.
I went with a tungsten band, and after choosing one from their showcase, they had two different sizes of the ring shipped in so that I could try both.
When we asked about engraving at other stores, we received mixed responses. Dennis told us they could definitely do it and went over any complications of the process that we should be aware of.
Finally, they appraised my fiancee's ring while we waited and offered free cleaning or resizing for as long as we own the ring. These guys are informative, helpful, and flexible when it comes to anything you request or just want to know about. We both got the exact rings we wanted at a great price, and could not be more satisfied with our experience.