Diamonds / scam artist
This person/company goes by the names of:Bidrise, Mark Bronner Benjamin Bronner Boris Drobachevsky. He advertises diamonds for sale. when you have won the bid, you either do not receive anything after paying or he sends you a worthless piece of carbon.
He has been ripping people off all over the world. just google his names and you will see how many complaints there are against him.