I purchased an engagement ring from The Diamond Vault after doing quite a bit of research and checking out every store in the valley (so it seemed). Oren was the most professional person, by far, that I had spoken with. There are so many very pushy sales people out there who don't take the time to educate people and guide them within their budget. The Diamond Vault was a great experience and made buying the ring fun instead of a daunting task.
Oren spent several hours with me the first night I met him and exceeded all expectations. If you plan on purchasing any jewelry or diamonds I strongly recommend you check this place out. He was by far the most knowledgeable person I met with and I can honestly say I went just to about every store you can think from the high priced places in the Biltmore / Kierland to diamond wholesalers to storefronts.
If you go, ask for Oren and I'm sure you will not be disappointed. I have had nothing but great comments on the ring and my soon to be mother in law went in to see the band and had great comments for Oren in just the 15 minutes they were there.