Yep, the wedding / honeymoon is at least 3-4 times the price.
2.5k on an item she'll wear once.
15k on dinner and drinks for your friends and family.
1.5k on bridal makeup and trials
20k on a honeymoon
1.2k on limos for a few hours
3.5k for a photographer and album
1k for a cake
2k in flowers and table decorations.
And then some...
Bring on summer 2015, so many new toys

Engagement ring is the cheap part. In saying that, dont buy a diamond from a jewellery store. Buy from blue nile or even better, jogia and then get it valued.