Why is platinum rising?

However, the tightening of emissions legislation means that platinum charges on catalytic converters are increasing. With the high price of palladium, there has started to be some substitution, due to the use of platinum instead of palladium in other types of engines. We tend to think that platinum is more expensive than gold, which is why platinum credit cards have a higher status than gold, and in the world of album certification, platinum (one million units sold) ranks higher than gold (half a million units).