I have seen people post price charts for a specific grade. Does anyone have a good site that allows you to plot multiple grades. Say you want to see price moves of a 62 vs a 65. I know you should always "buy the coin" but someday I or my children will need to "sell the slab" so I wanted to see what grade typically is the best bang for the buck. I see sites saying 64 and 65 but I don't know if they are just trying to sell their 64 and 65.
To answer your question no there is no such site. At least none that I ever heard of. That said you can find out what you want to know but it will take some effort, and a good deal of it, on your part. Just research auction archives and you'll see what you want to see. But you will have a hard time finding auction archives that go back further than 15 years.
Or just buy 15 years of the Red Book, priceless info there Actually, you can go back to 1947 (date, info from 1946).
Franks right in a way, that would give you an idea of the trend. But it would be worthless in regard to actual values.
It looks like the big jump goes from 64 to 65 and then huge jumps every grade up. Is this to say anything from say 60 to 64 is truly "buy the coin" range? Since the jumps up in this range are so small it seems logical if you like the coin then get the higher grade but whether the higher grade will lead the pack or stay in this pack as it moves up and down is the question.
http://www.ngccoin.com/price-guide/...t-gaudens-20-ms-63-price-history-coinid-19141 I found this if anyone is interested.
Try putting 62, 63, 64 and 65 on a chart. The 64 and 65 seem more stable but have more recent drop while the 62 seems to have more upside movement but bounces around much more.
Going back before 1986 is worthless because the MS 62 and 65 grades were not "standardized" before that time. then you have the problem that you won't find MS 62 and 65 grades in all those books Even in the current books you only find MS 60 and 63. You might find a wider range in the professional version but that covers a much shorter time range.
Also good to track the premium to the gold content, I have posted a few charts/links in various threads in early-2015.
An MS62 Saint (common) is going to trade more like bullion. If you think gold is beginning a nice up move, you'll probably do BETTER buying bullion or MS62's than MS65's and numismatics. Only a very long upmove in gold will allow the numismatic leverage factor to kick-in and outperform gold or MS62 commons. I think that the volatility of gold plays a part in the MS62's bouncing around. Numismatics like MS65s tend to resist the first wave of selling when gold peaks because people don't want to take losses. That's why there really aren't any clear trends from the charts I posted above except that a multi-year move higher in gold probably is best caught with bullion or lower-graded Saints rather than higher-priced coins like MS65's. Needless to say, even higher-priced coins like an AU-58 1907 High Relief won't budge on a few hundred dollars move in gold since it's close to $10,000 or 400% premium to gold.