Because it is very rare, more valuable than gold, and it is hard enough that it won't wear down.
Platinum
No, platinum jewelry is not measured in karats. The purity of platinum jewelry is measured in percentages, such as 950 parts per thousand being considered as 95% pure platinum. Karats are typically used to measure the purity of gold.
PI represents the platinum with Iridium setting of the jewelry. It is mostly used in fine jewelry. The ring might be a fine jewelry.
Platinum-clad sterling silver jewelry allows you to have all the wonderful shine and durability of platinum.
gold or platinum or silver
platinum
yes and it is very expensive
mostly just for jewelry purposes.
Platinum is resistant to most of chemicals and normal house hold synthetic detergents will not affect it and can be safely used for cleaning platinum jewelry. Mild acids like vinegar also can be used but best is to entrust the job to jeweler.
Yes, metals used for jewelry like platinum and gold have low reactivity, making them resistant to tarnishing and corrosion. This is why they are popular choices for jewelry as they maintain their luster and appearance over time.
Gold, Copper, Silver, Platinum, and Tungsten.
Platinum is used in jewelry, chemotherapy, and catalytic converters.