1. Antimatter – $62.5 trillion
2. Californium-252 – $27 million
3. Painite – $300,000
4. Diamond (Flawless) – $55,000
5. Musgravite – $35,000
6. Tritium – $30,000
7. Taaffeite – $20,000
8. Black Opal – $11,000
9. Soliris (Eculizumab) – $9,000
10. Plutonium – $4,000

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This top list shows the top 10 most expensive materials of all time (per gram). Some materials are so rare and valuable that their price per gram can be astronomical. At the very top of the list is antimatter, which costs an incredible $62.5 trillion per gram. This highly elusive substance is the most expensive material on Earth, used primarily in scientific research.

Next is californium-252, a rare radioactive element, priced at $27 million per gram. Its high cost is due to the complexity of its production and its use in specialized applications like nuclear reactors. Another extremely valuable material is painite, a gemstone that can be worth $300,000 per gram due to its rarity and unique qualities.

Flawless diamonds come in at $55,000 per gram, with their exceptional clarity and brilliance driving their high price. Musgravite, another rare gemstone, is valued at $35,000 per gram, while tritium, used in nuclear fusion and certain types of lighting, costs $30,000 per gram.

Other precious materials include taaffeite, a rare gemstone at $20,000 per gram, and black opal, which is valued at $11,000 per gram due to its vibrant colors. The pharmaceutical material Soliris (Eculizumab) is priced at $9,000 per gram, used in the treatment of rare diseases. Finally, plutonium costs $4,000 per gram, primarily due to its use in nuclear energy and weaponry.

These materials highlight the rare and expensive substances that push the boundaries of science, technology, and luxury.