Have You Ever Tried to Sell a Diamond? (1982)

Any society is full of irrational practices and purchases. Throwing rice at a wedding? What's that about? $5 cards to wish someone well? What on earth? Yet these are all accepted by society as societal norms, and even when the companies have conspired to create them (or at least magnify their importance) it is what it is. In a form of social proof, nobody wants to be the first to break with the tradition, which is how most tradition stays. Same goes for Christmas - which is nominally a Christian religious festival, but, at least in the USA, widely adopted by people of all religious and aetheist beliefs. Because nobody wants to be the grouch who doesn't hand out presents.

Interestingly the article mentions the introduction of Argyle diamonds - a friend of mine, while travelling in remote WA bought a large diamond at a fraction of the retail cost, direct from either the mine itself or a local retailer. He kept this for 15 years, which was the time period between purchase and eventually finding someone to marry (and getting it put into a ring).

But as to why the introduction of new sources hasn't drastically affected prices, I think that any new cartel or operator entering the market is just as likely to free-ride the hard work of De Beers. If De Beers spends significant money and influence maintaining a monopoly, and therefore creating monopoly pricing, any new entrant rationally would be well served to restrict supply so that they can free-ride on the monopoly prices without any of the costs of maintaining the monopoly.

Perhaps, but it's extremely hard (and not very lucrative) to follow the leader when the leader exercises such dramatic buyer and seller power in a marketplace -- unless you plan to compete on price, or to compete by tapping an entirely different market segment. Perhaps prices are much lower in certain markets, but if that were the case, we probably would have heard about the arbitrage opportunities by now, and commodities traders would have closed that gap in a heartbeat.

The different-segment theory is interesting, but it seems very hard to fathom without some sort of non-compete arrangement in place -- be it in X or Y geography, or for Z consumer segment, etc.

My best guess is that this is a two-sided story. There's a major demand factor involved (perhaps in Asia), coupled with the likelihood that the two cartels aren't directly competing. B has to go along with A if there's a price increase, because we know that the supply isn't actually low. There are enough diamonds to keep up with surging demand.

I've known about this monopoly for a while, and so has she. Heck, one of the first movies we watched together when we first started dating 7 years ago was Blood Diamond. Here's the conversation we had while in the jewellery store tonight.

Me: "Sweety, I really don't want to buy you a diamond. I really would rather buy you something that at least has some more value associated with it, like a sapphire."

Her: "Well, I've always pictured a diamond ring. That's what everyone gets."

Me: "Well, what do you like about the diamond that the sapphire doesn't give you?"

Her: "I like the sparkle."

Me: "Ok, that's fair. What about moissanite? (Link: http://en.wikipedia.org/wiki/Moissanite) It's supposedly even more sparkly and brilliant than diamonds."

Her: "What's it made of?"

Me: "You know how diamond is just carbon? Moissanite is silicon and carbon in the same type of crystal structure."

Her: "And it's natural?"

Me: "Well, it can occur naturally, but it's extremely rare. So the ones you buy are usually created in a lab, but are more brilliant than a diamond, but actually cost less. I can apparently get a 1.5 carat stone for $800."

Her: (annoyed) "I don't want something fake!"

Me: "Oh, so it's not about the sparkle then?"

I swear, De Beers has probably pulled off the greatest marketing stunt in the history of humanity. The fact that it's so ingrained in our minds, to the point where a smart, educated, and informed person like my girlfriend still wants a diamond even after knowing all the issues with them, is fascinating.

Honestly, as a community of people in the startup ecosystem, we could stand to learn a thing or two here.

It certainly makes for an interesting story.