Originally Posted by
kijhkijh
Really random, but just got a brain itch about this and can't seem to find any information about it online. When it all began why were Emerald, Sapphire and Ruby chosen in that order? In reality it seems like ruby is the most expensive gemstone out of the three then emerald then sapphire. Anybody have any insight?
Marriott Bonvoy does the same thing. Titanium is second highest level, next one down in Platinum, but platinum is a rarer element than titanium. Go figure.