Weddings are expensive business and first year of marriage setting up your nest together is going to cost a pretty penny.
The old "guideline" that recommends you invest the equivalent of two months' salary on the cost of the ring is pure marketing gimmick. You should deeply consider whether that amount could be better spent on your house down payment or a trip together or building a nest egg
When you are on the lookout for your engagement ring on a budget you would do well to keep the following ideas in mind.
Explore different gemstones-Diamonds are so expensive not only because they are rare in nature, but because their supply is tightly controlled by diamond cartels,which keep price artificially high.
Diamond in engagement ring is a recent phenomenon & for centuries simple gold rings have sufficed.But keeping the current trend for bling in mind I'd suggest you explore Emeralds, Sapphires, Rubies, Pearl engagement as the center stone for your ring.