A 0.3 gram moon rock was auctioned for $400,000 in 1993.
Neil Armstrong was awarded a moon rock this year, though it is on permanent display by the Cincinnati Museum and it technically is only on loan from NASA.
It might be interesting to split this into catagories?
Here are some catagories I think may be good, plus suggestions for the answer where I have one, or where one was suggested above…
Food : Safron
Mineral : Moon Rock? (How much are those Martian meteorite pieces that got to earth worth?)
Manufactured : Antimatter
Memorobillia : A lock of Elvises hair maybe
Flroa and Forna : Rare fossil or Lilly maybe
add more categories you think would help…
Speaking from personal experience, I’d have to say the answer is “a wife”
Any answer is as useful as the next. The answer to the OP depends partly on opinion as well as definitions. THE answer if it can be determined is of little real value other than to serve curiosity as far as I can determine. A usless number for anything except possibly the book of records.
Your wife is evidently skinnier than mine.
Tom Clancy suggests Tritium in The Sum of All Fears.
I enjoy Clancy’s novels, but in the contest for factual accuracy I have him in a death grip with Michael Crichton and his frog-spawned dinosaurs.
Synthetic diamond?
Cite please on why Synthetic Diamond might be the most expensive thing in the world by weight.
Ink on a check signed by Bill Gates
My cite is my uncle.
Back in the 60s he had a loan of the largest one in existence at that time, the size of a grain of salt and worth millions. Family legend has it that he sneezed and dropped it off the microscope slide onto the floor of the lab, then spent the entire night vacuuming, and picking through the vacuum bag with a microscope.
I realise that the standard of this answer might not conform to the accuracy desired in GQ, so I’ll shut up now.
No don’t worry, I was just wondering if their was a special sort of artificial diamond of great expense you knew about.
Affraid that deflation has hit artificial diamonds hard now. They are mostly cheaper than natural diamonds these days.
Here are the master’s words.
I don’t know that…AAAAIIIIIIEEEEEEEEEEEEE!
Unless that check is like, for his gas bill. Actually come to think of it even that could be worth quite a lot.
Many years ago a watch spring was far more valuable than it’s weight in gold.
Let’s not forget “Upsidaisyum”
ok peeps, I’m new here and I only joined to answer this question! This item is REAL, it EXISTS ON EARTH, it IS obtainable…if you have the money! I’m not sure if it is the CORRECT answer, but I AM sure it the most expensive by weight item I have come across and it’s not metal…it’s paper…
PAPER!!!
It is a postage stamp! in 1996 this swedish stamp sold for approx 2.3 million US dollars!
The mass, volume and density of the Swedish ‘Tre Skilling Banco’ classic have recently been measured for the first time by The Swedish National Testing and Research Institute in Borås, Sweden.
The weight has been measured to 0.02675 grams (0.0009 ounces), which gives the stamp the staggering price of $US85.98 billion per kilogram. (I had a client who is a Math Professor in Illinois check my figure, and he agrees it is correct!) This makes the stamp the most valuable thing in the world per weight or volume - as far as I am aware.
Advanced measurement equipment was used to perform the unusual task, and a sophisticated optical microscope was used in order to calculate the exact surface area, a difficult task considering the perforations on the stamp.
How much do braaaaains cost?
I agree hydrogen is expensive but the first thing I thought of was the hot air emanating from the mouths of too many politicians. It usually costs us dearly.
Great answer. And welcome to the forum.