Louis Cartier was called the jeweler of Kings and the King of Jewelers by King Edward the VII of England. He earned this title by being the first to ever create platinum jewelery and reveal the hidden properties of the metal.
Platinum is a very rare metal that seems to disappear at times throughout the ages. Platinum is a metal that is found in meteorites, and with the first recorded meteor hitting earth more than two billion years, and remanants of the metal showing up in 700 BC when royalty was buried with decorations made of gold and platinum.
The precious metal then dissappeared for more than two millennia and reappeared when spanish conquistadores disregarded the metal as platina and a nuisance when it came up during excavations in search of Gold.
Platinum is much more rare than gold, and has a very high heat tolerance. It can not be tarnished or corroded with gasses or chemicals.
Having a silver appearence and a heavier weight than gold, platinum is also a great store of wealth for the elite of the elite.