The best thing that you can do, is to make sure that you are avoiding any unregulated diamond trading broker. If you trade on a regulated platform and you are not an experienced trader, then you should also be careful and only invest money you can afford to lose. Moreover, don’t let any broker so called “agent” trade on your behalf or you will probably wake up the next morning with an empty balance.
Research is key. It doesn’t matter if you have the right experience in diamond trading or not. You should do research about what to expect, and about the company behind the broker making sure that they are legit and regulated.
The more research you are doing, the less chance you are going to have to fall for a scam.