Luckily, you can purchase big cheap 
diamond engagement rings if you considered the 
brilliant setting options that are given below.
Halo Diamond Ring Setting

In this 
setting, the main 
gemstone is encircled with a 
halo of 
diamond accents by means of mini 
prongs. This will create an illusion of a huge 
solitaire if you viewed it from a distance. You can also choose to 
pave two or three layers of 
halo in order to make it look incredibly huge as well as to offer a 
vintage appeal.
Cluster Setting
Another way to get big cheap 
diamond engagement rings is by opting for a 
cluster diamond ring setting. Here, tiny 
diamonds of similar size are tightly packed and 
clustered at the focal point of a 
ring in order to make it look like a 
solitaire. The mini 
prongs in the 
setting made of 
platinum will also add to its overall appeal.
Three Stone Setting

This is one of the ancient 
diamond ring setting options, which never loses its charm. Here, a medium-sized
 diamond is bordered with 
diamond accents of similar or smaller size. This will make it look like a huge, single 
diamond when viewed from a distance. With this, you can buy big 
diamond rings at a fair price.