Question - would you pay $5 for a stamp that had a CV of $0.20 if it was graded XF 95? How about $500 for a $20 stamp?
I'm about to embark on a new era in my stamp collecting

- collecting US stamps. I've been collecting Australian stamps for most of my life, but I know virtually nothing at all about US stamps. But that's probably the subject of another post, this one is about grading.

Grading hasn't really caught on in Australia. Obviously a stamp's value is dependant on its condition, centreing etc, but in general stamps are not graded with a number, except perhaps rare high value stamps. Even then it's usually just a certificate of authenticity rather than a grade.
But now I'm looking to make my first ever purchase of a US stamp, and I find that even common low value stamps can be graded and some extraordinary price asked. Lets take a look at a real life current example: Scott #891, a common 3c bright red violet Cyrus Hall McCormick. Scott CV (2008) is US$0.30 for MNH. That's 30 cents folks.
Stampwants. You can pick up a very good looking 891, excellently centred (to the naked eye), for US$0.25. Sounds about right... But wait. Here's one that's been graded by PSE, XF 90, for US$8.00. That's a fair mark up on a 30 cent stamp. Oh, here's another one, graded XF 95 for US$20. A CV 30 cent stamp we're talking about. But that's nothing! Graded XF 98 - US$100! OMG! And the pièce de résistance - graded GEM 100... US$285

Clearly a GEM 100 stamp is rare compared to the "normal" issue, but worth that much? Do people really pay these prices? In Australia a retail shop might charge 100% premium for a superb example of a stamp, and that's about it.

I mean catalogue value is already for a good copy, badly centred or other faults and it's worth less than CV.
Now I'm not against the grading of stamps, and yes I would perhaps pay more for a graded stamp - maybe I would in fact pay $5 for a 0.20 stamp, but I wouldn't pay hundreds, or $300 for a $100, but not thousands.
So what's your view on the grading of low value common stamps? In effect making a rare stamp of a common one by giving it a certificate. Without the certificate if you were to sell it, it'd probably go for slightly higher with the excellent centreing, but nowhere near the graded prices.
Sorry for the long post. Now I must go rumage through my collection and see if can find something near a GEM 100, so I can get it graded and make it worth 1000 times more.
