ByDaily Mail Reporter
Updated: 19:07 GMT, 22 December 2011
They are born just months apart, own two of America's most expensive homes and have two of the world's wealthiest men as fathers.
That Ekaterina Rybolovleva and Petra Ecclestone are some of the world's most privileged heiresses there is no doubt - but while their backgrounds may appear strikingly similar at first glance, the two heiresses lead very different lives.
While both have taken the real estate world by storm, Ekaterina remains a modest and relatively unknown character. Her peer, Petra, has an image that is rather more in keeping with her flashy $175million property portfolio.
Chalk and che