Difference in value

Why is there such a discrepancy between NGC and PCGS coin values on some coins? Case in point; 1818 half dollar graded AU58 (NGC) is valued at $1480 on NGC, while the PGSC valuation is $2750.00. Though not always the case, several other coins I have show the same differences in value. (Maybe I'm putting too much stock in either of these outfits, I've often said the value of a coin is what the last buyer paid for it.)

 

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Different slab design?

 

I am no expert but i will caution you to remember they are just guides. You have no way of knowing "when" any of those prices were updated. It has been my experience that some prices go years and years unchanged. i will also agree with you. I place far more emphasis on finding 3 coins that have traded hands recently than on anyone elses's guess. james

 

I recently purchased a proof trade dollar. I did the research on the coin and this was what I found.
PCGS Price Guide $3000.00
NGC Price Guide $2850.00
Recent Auctions ranged from $1920.00-$4560.00
I paid $2300.00 straight up for the coin and felt that was a fair trade.... Thing is the price guides are just that. Guides... Particularly when you start looking at higher valued pieces.

 

It’s only a guide. So is the red book with its prices.

 

NGC in particular seems slow to update certain things on their website. If you "view all" on their auction prices, the most recent one is Dec 2020, whereas PCGS shows 5 sales more recent than that. Numismedia shows $1710, which seems more accurate if you look at the prices on PCGS. The two "SD" coins shown $2604 and $3300 are both CAC and visually more appealing than the two HA prices below that, and those two are the same coin that got resold 7 months later for a $60 loss. You can't really trust a price guide and have to dig into the actual sales.