I have to confess that the tungsten carbide pins I tested today are the most lovely tungsten products I’ve ever seen. They are quite tiny and delicate. Shaped in small columns, tungsten carbide pins are formed by fine gray tungsten carbide powder that can be pressed and formed into shapes for use in industrial machinery, tools, abrasives,as well as jewelry. It’s really hard to imagine its application in jewelry, but in fact, tungsten carbide products are indeed increasingly popular in jewelries, such as tungsten carbide bands and rings, and one of the most important reasons is that there is nothing that is able to destroy these hardest rings in the world. Tungsten carbide ring is 4 times harder than titanium’s and 2 times heavier than platinum’s. It would be a perfect thing to have a ring that remains un-blemished and shiny for lifelong! As for me, black tungsten carbide rings are the most attractive.