In case you are a first-timer to diamond jewelry purchase, this step can be a bit daunting and overwhelming for you. In order to give you a better idea regarding the same, below is a helpful guide to buying a diamond engagement ring.   Look for a Credible Diamond Ring Seller Diamond engagement rings can be really expensive, and hence, you must be really attentive to how you go about it. The first step is to look for a credible diamond ring jeweler. Make sure that they are in the field for at least a couple of years, and are known for their good work. Talk to the Designer Once you have decided on a jeweler, the next step is to choose the best diamond ring design. For this, you can talk to the designer about your partner's lifestyle, likes, dislikes, jewelry, and dressing styles, etc. A good designer will be able to customize or choose a readymade ring that is perfect to define her personality. Make sure that the price of your ring stays within the budget and comes with a credible authenticity certificate.