You can buy a diamond at Tiffany, Blue Nile, or Costco, but there are some things you should know before buying one anywhere. Skip to content. ... Costco Wholesale Corp. is a ...

The retail price of a diamond is marked up from what the jeweler initially paid for it, sometimes more than 300% of its wholesale cost. 6 Diamond buyers aren't going to pay you what you paid ...

In June 2023, Vrai launched its “Cut for You” program, which allows anyone to buy a diamond, grown just for them, to whatever specifications their heart desires.

Now De Beers, which has cut its production and is set to go public in the next 12 months after its parent Anglo American put it up for sale, is sitting on a $2 billion stockpile of unsold diamonds.