Recognizing synthetic or fake dimonds.
Although there are artificial diamonds produced, they are not generally of gem size and are mainly used for industry purposes.
But there are numerous synthetic stones, which appear of superlative quality and even compare with some diamonds in their brilliance.
Nevertheless, the sole way to avoid the trouble is to trade simply with a single diamond trader so that you are confident that each stone is real and with no flaws.
Remember to always ask your jeweler if the stone is a real diamond or if it is a cubic moissanite, zirconia, or other synthetic crystal. A reputable jeweler will give you the right and honest answer.