The costliest variety of mangoes in the world is the Miyazaki mango, which is grown in Japan. Miyazaki mangoes are known for their sweet and creamy flavor, and their unique heart-shaped appearance. They are also very rare, which contributes to their high price. Miyazaki mangoes can cost up to $2,700 per kilogram, or about $1,200 per pound.

Here are some other expensive mango varieties:
Kohitur mango: This variety is grown in West Bengal, India, and is known for its sweet and juicy flavor. Kohitur mangoes can cost up to $1,500 per kilogram.

Tommy Atkins mango: This variety is grown in the United States, and is known for its large size and sweet flavor. Tommy Atkins mangoes can cost up to $50 per kilogram.

Kent mango: This variety is grown in India and the Philippines, and is known for its sweet and creamy flavor. Kent mangoes can cost up to $40 per kilogram.These are just a few of the many expensive mango varieties that are available. The price of mangoes can vary depending on the variety, the time of year, and the location.
