Fake currencies are still a shady business practice, even though there's gold to gems exchange. Here's the store without gems. Also: “micro”transactions. : r/Guildwars2
Guild Wars Gems | 4000 Gems | Gamecardsdirect.com
unable to purchase gem - Account & Technical Support - Guild Wars 2 Forums
The Nosy Gamer: A Quick Look At Buying Legitimate Gold In Guild Wars 2