Custom Jewelers Dallas is a diamond wholesaler and we also have an on site diamond cutter with 25 years of experience. We are custom jewelers so whether you are looking for a diamond engagement ring or any other diamond jewelry we will not be beat undersold. We have every type and size of diamonds available. We also offer diamond upgrades giving you credit for the original purchase price of a diamond you bought from us before. We do not mark up the price of our jewelry like the jewelry stores that we supply to.