grading guarantee- can it be profitable?

If I see a $4,000 coin(retail) that is clearly over graded and cleaned by PCGS/NGC could one send it in for downgrade and make some money if it was purchased cheap enough say for $2,000. I don't think this is an ethical way to buy coins with this motive in mind but I see coins like this in auctions sometimes. mike
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would really suck if the slab had been tampered with and PCGS notices but you do not - especially if your $2000 purchase was only worth $500 not $4000
would PCGS value it at greysheet ? or look at the last few sold and determine price ? ( and see the one they are trying to determine price on )
Way too many uncertainties in this to know how how the grade guarantee would be applied (if at all) by whatever firm, and what your potential re-imbursement would be, etc.
whenever I see a $50 coin and the seller is asking $20, I ask to see if they have the price right
Already is...for PCGS.
Doggedly collecting coins of the Central American Republic.
Visit the Society of US Pattern Collectors at USPatterns.com.
<< <i>You could never make a profit using the grading guarantee. No matter how overgraded or how cleaned, the grading company will say its our opinion and we stand behind it. While there open to honoring the guarantee for fingerprints, overgraded or cleaned? You can bet your life, NO! >>
This just ISN'T true!! I had one coin downgraded (from PR70DCAM) by PCGS. Their offer was a fair price for a PR70 which happened to be about $10 more than I had paid. So, no, I didn't make any money; but I didn't lose any money, which is what the guarantee is supposed to be about. And, obviously, I would have preferred to have a PR70 coin, which is why I bought it (based on photos in an auction) in the first place.
Pete
<< <i><< You could never make a profit using the grading guarantee. No matter how overgraded or how cleaned, the grading company will say its our opinion and we stand behind it. While there open to honoring the guarantee for fingerprints, overgraded or cleaned? You can bet your life, NO! >>
This just ISN'T true!! >>
Pete,
Of course it isn't true. Some people just like to spout off on things about which they know nothing.
Darktone,
Yes, it can be profitable, and was for me the one time I needed to use the guarantee.
Russ, NCNE