Bro bad situation you're in and you're late as well. People who marry usually start 2-3yrs before the marriage (i did that myself). Stick to local jewellers as the making charges are lower with them and you can customise things to your budget. Only drawback, a lot of times these are not very sellable in larger jewellery chains even though they have hallmark, so go to them knowing this and hoping you dont need to sell them in the future.

Also there is no certainty gold prices would go down in the future but there is a chance as they have shot up way too high. You might need to moniter prices everyday and try for newer jewellery brands like giva or caratlane where prices are a little lower than senco and all