I'm open to correction but it seems to me that Coinmarketcap is making some errors in calculating marketcap. I think POS coins are being all treated the same ie they are calculating marketcap based on total supply BUT some POS don't have total supply available, I know Getgems is not a POW coin but in some ways it acts a bit like one in that it will be
AT LEAST 3 years before all the coins are in circulation. The fact is Getgems only has like
40m available now and not 88m. Which means two things good and bad however you want to look at it. Firstly that Getgems actually only has a marketcap of around 1m half of what it seems to have and so should be around 40th place on coinmarketcap.
The good news is of course that its therefore half price and more undervalued than coinmarketcap makes it look.
Its also mixed up total supply, cause coins were burned 88m IS the total supply. And as I've said available is less than 40m.
http://coinmarketcap.com/assets/gems/*I don't actually expect Coinmarketcap to chase up Getgems and constantly update based on changing available supply but this means we can't trust Coinmarketcap to tell us the full picture. Though its worth mentioning they managed to get Ripple right and base it on real available supply....