Let's say this is your good friend. What's your max budget that you would spend on bachelorette party and / or wedding ( as a cash gift ) ? What do you think is an "appropriate amount " . Personally, I think that $100 pp as a wedding gift is not enough, usually that's my budget for B-day parties, so I would say at least $200 I think that much money is fair enough and looks as a "valuable gift". Also, I've seen people spending up to $1000 on bachelorette parties, personally I think this is insane ( unless it's your sister/cousin ) but for the friend , even spending $400 is a lot of money for bachelorette.