tungsten cubes with golden plated surface for sale size of 10mm*10mm*10mm

tungsten cubes with golden plated surface 

        Have you ever heard about the tungsten cubes with golden plated surface? Do you know what's the exact size of the tungsten cubes with golden plated surface? And can you guess what's the purpose of this kind of the tungsten cubes? 
        Generally  the smaller the size it is , the easier it is to manufacture and be plated with gold. We can manufacture size 10mm*10mm*10mm, 20mm*20mm*20mm tungsten cubes with golden plated surface. What's more, we would prefer to manufacture tungsten bar with golden plated surface. 
        We have done a research that this kind of the tungsten cubes with golden plated surface , many Indian friends told us they use this kind of tungsten bars to send as gifts when someone get marry during the wedding, when the time the father from bride side sent good fortunes to their children. While, some they say they sell the tungsten bar with golden plating surface to someone who is interested in Commemorative coin collection. 
         The price of the tungsten cubes with gold plating surface is more expensive than that of the tungsten cubes or bars without it. The manufacture processing of the golden plating is hard to handle.