Even though there are plenty of eternity ring shapes and styles out there, most of these rings usually contain diamonds all the way around their circumference. These types of eternity rings are popularly known as full diamond eternity rings. However, some diamond eternity rings contain diamonds or gemstones only on the ring’s top, and in such cases, they are called as half eternity rings. Apparently, the cost of a half eternity ring will be relatively less when compared to that of a full diamond eternity ring.
Several expert diamond ring collectors claim that eternity rings were initially used by ancient Romans. The eternity rings used by them symbolized both eternal love and eternal life. Some of the eternity rings used by ancient Romans also contained an odd design with a snake biting its tail. This symbol was actually considered as a sign of rebirth and immortality in the Egyptian culture. However, diamonds were not that commonly used in these eternity rings.