Kim Kardashian was considered the richest Kardashian.
Kim Kardashian's net worth was estimated to be around $1 billion, primarily from her various business ventures and brand endorsements.
However, it's important to note that the financial status of individuals can change over time.
Kylie Jenner, a member of the Kardashian-Jenner family, was also considered one of the wealthiest, with a net worth close to Kim's.
Kylie Jenner's wealth mainly stemmed from her successful cosmetics company, Kylie Cosmetics.
Other members of the Kardashian family, such as Khloe Kardashian and Kourtney Kardashian, have also built substantial fortunes through their business ventures.
The Kardashian family as a whole is known for their entrepreneurial endeavors and ability to monetize their fame.
Kim Kardashian's success can be attributed to her various ventures, including her beauty line, KKW Beauty, and her shapewear brand, SKIMS.
The family's reality TV show, "Keeping Up with the Kardashians," has also played a significant role in their financial success.
It's worth noting that the rankings of the richest Kardashians may have changed since my knowledge cutoff.