Einsteinium is not a commercial material.
Einsteinium is not for sale.
Fortunately, we haven't einsteinium in the body.
The answer depends on the amount of einsteinium whose weight is required.
Einsteinium is not so important to change the world.
Theoretically einsteinium could form a critical mass but we haven't so much material.
The cost of einsteinium can vary, but it is expensive due to its rarity and production costs. Generally, the price of 1 gram of einsteinium can range from tens of thousands to millions of dollars.
Besides scientific research, Einsteinium has no other known uses. Since the element does no occur naturally, it has to be made synthetically. Only small amounts have been made and I would doubt that it is for sale.
Iridium, Einsteinium
Einsteinium is a man-made element and is extremely rare. The total amount of einsteinium present on Earth is minuscule, estimated to be in the range of milligrams or even micrograms. It is primarily produced in nuclear reactors or through nuclear weapon tests.
The appearance of einsteinium is silvery.
Einsteinium is not corrosive.
Einsteinium is not flammable.