
This man is regarded has the wealthiest monarch and owns one of the most expensive diamonds!

Mukesh Ambani ranks as Asia’s richest man with a net worth of $120 billion (revenue) as per Forbes. This year the latest Hurun Global Rich List 2025 dropped Ambani out of the elite top 10 wealthiest list. However, he is still the richest man in Asia. Despite his wife Nita Ambani’s opulent jewellery collection, he is not the owner of one of the costliest diamonds in the world. The custodian of the precious jewel is a monarch.
This man is regarded as the wealthiest reigning monarch in the world. His name is Thailand’s King Maha Vajiralongkorn, referred to as King Rama X. He has an impressive array of assets, jewels, luxury cars, estate etc.
About World’s Wealthiest Monarch
Rama X or King Vajiralongkorn was officially crowned in May 2019 at 66. He ascended the throne after his father, King Bhumibol Adulyadej, passed away on October 13, 2016, concluding a remarkable 70-year reign.
According to report by Business Standard, the wealth of the Thai monarch is estimated around $43 billion. Reportedly, the primary source of King Vajiralongkorn’s wealth is the Crown Property Bureau, an agency controlling over 6,560 hectares (16,210 acres) of prime land. Word has it that he owns the Golden Jubilee diamond, a 545.67-carat gem considered the largest and most valuable diamond in the world, with an estimated worth over Rs 92 crore. Apart from this his personal air force includes 38 planes, over 300 high-end luxury cares, boats and more. This is an estimated number of his lavish collection. Imagine the amount that would be required for its maintenance. He spends about R24 crore annually on the maintenance of these aircraft!
This treasure trove is a symbol of his immense power and wealth. The possession of the exquisite diamond makes him stand apart with lavish lifestyle.