Has anyone else purchased a diamond that they thought would hold its "value" and then try to trade it in or sell it only to find out its not actually worth what you paid for it? My diamond has a trade in deal @ Sathers but I would have to buy a diamond worth twice what I paid which would be like $8800- which I don't have the $ for. When I tried to trade it in with a pawn shop they only would about 10% what its worth!
The people who bought superideal diamonds at Pricescope prices back in 2004-2005 or 2006, if the diamond was over 1ct, were able to sell theirs and make some pretty decent profits, even in the secondhand market. But that was because the prices for those top tier diamonds have really increased in the past 2-3 years, before falling back "some" in 2012. Large diamonds, even if not top cut grades, also seemed to appreciate pretty well, too.
But generally, you'd have to buy wholesale or secondhand or from an estate or something to have a shot at not losing money selling a diamond.
To be fair, people on this board have also lost a lot of money on their expensive sim-stone rings when they sell them as secondhand rings. That's why I usually only buy what I plan to keep a long time. I am not going to repeatedly lose piles of money selling something at a huge loss to fund a new project.