By contrast, a gram of cocaine costs 75 euros in the U.K. and 55 euros in the U.S., according to the independent researchers, who surveyed more than 100,000 respondents in 50 countries between November and December last year.
Kiwis and Aussies are stuck paying top dollar because of tough border controls, addiction psychiatrist and survey founder Adam Winstock told CNBC. Also, the relatively small market size isn't as attractive to cartels.
Of the 100,000 people surveyed across the world, between 15,000-20,000 said they had used cocaine in the last year – and 80 percent of those had used it less than 10 times over the period.
This, Winstock said, meant that cocaine use was relatively low compared to other narcotics.
"If you look at the sampling among cannabis users, many had used over 100 times in the past year, and for alcohol, a lot more were using weekly," he said, highlighting that only 1 percent of cocaine users had used it more than 100 times over the period.
"It's a good thing that coke is really expensive. It helps lowers indulgence," he added.