One such thing to look for is whether the center and accent stones on the ring have any kind of defects or internal cracks. You need to examine the ring under proper light to verify any defects. For this, hiring the services of an expert gemologist is also good, as they can guarantee the genuineness and quality of the ring, and help you in choosing the right one. The other key thing that a diamonds antique ring is known for is their craftsmanship. All diamond antique engagement rings have exceptional quality and make, so you should make sure that the ring setting that you have has one in order to get a valid purchase. Besides, it is better to avoid rings that contain poor craftsmanship and deteriorating quality, as they do not have the value that you would expect from an antique ring. The next thing to look for is the type of ring setting used. This, however, differs from what we have understood about the common ring settings. The settings differ with the period, such as Edwardian or Art Deco, and choosing one that clearly fits with your style preferences is recommended.