IMHO this is how diamonds have proliferated for so long despite having minimal intrinsic value.
I had dealt with 'chocolate' diamonds for years, I currently have hundreds in my wood shop! My father works as a machinist, and brown, low-quality diamonds are their abrasive of choice for many jobs. They're (or rather, they were) super cheap because they were such low quality. I always swiped a handful when I visited him at work as a kid, because they made great pellets (they were exceptionally tiny and really hard) for my slingshot. I had a whole jug of them and just forgot about the things.
And now here we are.
Chocolate diamonds are a direct contradiction of regular diamond marketing. If you go to great lengths to talk about how important clarity is when justifying your diamonds' prices, it's particularly silly when you start selling the least clear diamonds possible.
The first shop she took it to offered a little under 10% of what it cost. She thought the shop was trying to scam her, so she went to a bunch of other shops, and they all offered less. So she went back to the first shop a couple of days later, and there was a different guy there who told her that the first guy was an idiot who overvalued the diamond. It was a piece of junk, and it was worth well under 10% of what it cost. The jeweler also pointed out, in detail, that the diamond itself was really shitty even by the standards of wedding rings. But because they already made that offer, they decided to honor it anyway just to avoid any drama. And so my mom sold a ring that cost her and my dad $30k for about $2600.
And I understand that's normal. Retailers mark new diamond rings up like crazy because that's how much people are willing to pay for a wedding ring, even if it's not what the stone is actually worth.
It's a glass bottle, it doesn't leak, it doesn't shatter when you pick it up. Apart from appearance, how much better quality could it usefully be?