Diamond prices are down 60% since a 2011 high, and they are still falling. It’s not all down to lab-grown diamonds, demand is down too, especially in China.
No one can lab-grow gold yet, so its rarity and scarcity protect its value, but that will end too. It’s just a question of when. China launched an asteroid touch-down mission this week, which will make it the 4th country/region to do so, after Europe, the US & Japan.
How soon will it be feasible to mine asteroids? Who knows, but a breakthrough in space propulsion might mean the prospect happens quickly when it does. It’s possible gold has twenty years or less of being high value left.
The $80 Billion Diamond Market Crash Leaves De Beers Reeling

It’s good to see diamond mining being replaced by artificial diamond manufacturing, which appears to be better envitonmentally and socially.
But I wouldn’t compare diamonds to gold. Because gold is an element that can’t be manufactured (without a particule accelerator and an insane amount of energy).
Asteroid mining is still science fiction.
Right? Diamond is a crystal of Carbon. Its synthesis was a challenge, required high pressure, but sounde doable from the beggining.
Now, transmuting one element into other (gold)… That’s atomic energy right there. A whole new level.
Can’t wait for the day when we can have proper corrosion resistant materials. Just gold plate the hull of a ship, and salt water can’t do much.
Would that really help though? Gold is super soft so I think it would need to get frequently coated/plated again — and we already have pretty good and resistant marine paint.
Titanium is very corrosion resistant, not to mention plastics/fiberglass/carbon fiber, as I understand.
But yeah, cheap gold would be be great, just seems to me that the market would more be in e.g. electronics, where both corrosion resistance and electrical conductivity are required (something gold is fairly unique at).
Yeah, well maybe ships weren’t the best example.
Low wear resistance of gold is a significant issue, which definitely limits the number of potential applications, but I guess gold alloys could still be useful. For example, titanium has a bunch of alloys for different purposes, some more corrosion resistant than others, while others were optimized more towards wear resistance.
Titanium can also catch fire, which makes it a very tricky metal to use. Putting out a fire like that is pretty much impossible, so if your titanium cladded reactor catches fire, all you can realistically do is try to prevent the rest of the building from burning down. The reactor itself is gone at that point, so all you can do is wish you had paid for the gold cladding instead.
Also, the electrical conductivity of gold is amazing. If gold was as cheap as iron, we would definitely use lots of it in various electrical appliances.
If you can mine gold from asteroids, you’re probably also going to find silver and platinum. Those two have some amazing properties too, so I think asteroid mining has great potential to permanently revolutionize a bunch of industries.
Asteroid mining would collapse the markets for most minerals, except perhaps the higher volume stuff like iron.
It’s possible gold has twenty years or less of being high value left.
In 20 years florida and NYC may be underwater.
The breaktrough for asteroid mining isn’t propulsion but how to mine and process ore in a vacuum.
Hmm. What’s hard about that?
Drill and blast seems like it should work as normal, or just a bucket if it’s the rubble heap kind. Getting noble metals like gold out of a solution is pretty easy with electrowinning.
Drill and blast seems like it should work as normal,
Zero G?
What about those things require any g?
Asteroid miners are going to have more in common with spiders than anything else; find a tasty roid, wrap it up in cling wrap and set off bombs inside of it until it’s a bag of gravel, then get the whole mess spinning and just let go of the stuff you don’t want to keep. Hell when you’re done you can re-harvest the angular momentum to propel you over to the next roid and start the process over again.
So easy, why hasn’t anyone done it already???
I mean, most space travel ideas haven’t been done, even ones that are many decades old. Shit’s expensive and risky, both as an investment and an activity.
Easy? Who said easy? I didn’t say easy, I just explained a way it could be accomplished while conserving as much energy as possible.
Creating a debris field in orbit? You want this thing fully enclosed before you start messing with it in ways that cause it to break up.
I suppose in a very low orbit you could consider messy options if it will all burn up in a few months. But doesn’t seem ideal.
Why would that be a problem? The drilling platform would have to be tethered to the rock, but that’s doable and I’m pretty sure they drill all the time on the ISS. Actually, didn’t we drill into a comet or asteroid for samples sometime recently? The explosives would require no modification at all.
The drilling platform would have to be tethered to the rock
That would be the start of a solution.
Barbed harpoons were the approach with the comet. Putting a band around the whole thing could also work for a small body. If you’re going for gold, the asteroid is also going to be paramagnetic if I’m not mistaken, so you can just electromagnet on.
It’s slightly more problematic than on Earth, but I’m basically going to need some citations if I’m ever going to believe it’s sticking to the chosen landing site that’s the hardest part. A lot of proposals sidestep on-site processing, even, and rely on delivering a whole small body to Earth.
Maybe not to Earth (unless you wanna crash economies), but a LaGrange point would be suitable – as well as a place for something spinning so the hairless monkeys could have a semblance of gravity.
If you have human miners, anyway.
I find the idea so dumb that we have a high value for a metal that objectively has few worthwhile uses. And because our folklore made up a high value from this. We’re gonna spend hella resources to extract it from fucking asteroids. Even tho it has no objective major value.
(Imagine how many people we could feed with those resources instead)
While I agree it is overvalued, what really put it into perspective for me is that all of the known gold in the world would fit into a cube with a side length of 20-25m.
So a fair price would be lower than what it is now, but it is scarce and its uses (corrosion resistance, conductivity, malleability, reflectivity, etc.) probably would still warrant a relatively high price.
all of the known gold in the world would fit into a cube with a side length of 20-25m.
Same could probably be said about my lifetime toenail clippings, but Beyonce won’t be dropping high stacks for those earrings.
Gold has plenty of uses, besides being shiny and easy to work with. Imagine if all your electronics used gold traces because they were so cheap. Imagine if the windows of your car were coated in gold like on an airplane so you could easily defrost them in the winter rather than blowing air at it in the front and potentially distracting lines in the back. Imagine if gold was the filling of choice since it has a similar expansion rate to teeth. Gold has a number of applications in space. Ever wonder why the JWST is that color?
There are plenty of things gold would be excellent for if it wasn’t so expensive.
Ah, yes, the notoriously accessible and inexpensive field of launching rockets, landing said rocket on a giant sized bullet so a robot can go drill in it for weeks to dig up thousands of pounds of rock, lifting the robot that now weighs significantly more off of the giant bullet, and safely returning it to our larger, slightly slower bullet.
Careful there, you’ll trigger a lot of gold worshiping tryhards
The rocket equation wants to have words with you.
Are they able to lab grow the same kind of gem quality diamonds that you usually think about when it comes to jewelry, or is it still mostly industrial applications (such as diamond tipped drill bits)?
I’ve heard that lab grown are actually better across each measurement (clarity,shine, whatever), than natural diamonds, now.
It is the blood and slavery that make natural diamonds so valuable /s
If the price of gold plunges one day, it should already plunge today. In other words, the probability for success of those mining operations is low.
Why should it already plunge today? The demand/supply is still the same.
But it will not be the same when asteroid mining increases the supply tenfold.
True if used in production. But it’s used to store value. If I know gold will be worth 50% next year, I am not willing to pay full price today if I want to resell it then.
Neat! Let it come down to it’s real value.
If one day there are folks mining asteroids for gold they will not be humans as we will make ourselves extinct before that ever happens.








