Many people buy lab-created diamonds since they are cheaper than their natural counterparts are, while having the same physical, chemical, and optical properties as them. This is one of the best options for cheap diamond engagement rings.     Another way is to choose the right carat weight and cut that lets you get one by shelling out less. One of the best approaches for this is to buy one that weighs just a shy below than rounded carat weight. In fact, even if you buy the gem that is slightly off the half-carat mark, the eye cannot tell the size difference, but the price tag surely does. For instance, a 1.20 ct diamond is much affordable than a 1.50 carat stone, and an untrained eye will not be able to tell apart the two. Besides, the cut also plays a key role. Although a vast majority of buyers chooses a round brilliant cut, an emerald cut diamond is an affordable option than the former. It also makes the ring appear bigger. Similarly, choosing the right setting also matters; an easy way to buy cheap diamond engagement rings is to go for one with the halo setting. The small gems encircling the centerpiece gem makes it appear bigger while costing much lesser.