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The NGC registry: Has anyone cracked their system of assigning values to coins?
dan1ecu
Posts: 1,573
I read on the NGC website that their system of ranking coins is based on the coin's market value (which is a good - but not perfect - indication of rarity), plus other factors. All that they say regarding the system is that it is "complex and highly proprietary..."
They assign specific values to a given coin, like "1303" and "1484." I'm not sure if the scale is linearly proportional to scarcity, or what. A star will earn a coin extra points, but how many extra points varies from coin to coin. Additionally, PCGS and NGC coins are ranked similarly - they don't distinguish between the two (does that say anything?).
Does anyone have any insight into the NGC system of ranking coins for their registry sets?
Dan
They assign specific values to a given coin, like "1303" and "1484." I'm not sure if the scale is linearly proportional to scarcity, or what. A star will earn a coin extra points, but how many extra points varies from coin to coin. Additionally, PCGS and NGC coins are ranked similarly - they don't distinguish between the two (does that say anything?).
Does anyone have any insight into the NGC system of ranking coins for their registry sets?
Dan
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TorinoCobra71
Lets look at the Complete US Type Set as our experiment. Take, for example, an MS67 steel cent. This coin gets approximately 300 points yet only costs around $50. On the other hand, a 1796 quarter in F12 received about 4,200 points yet costs around $23,000. So, the steel cent receives approximately six points per dollar while the 1796 quarter receives one-quarter point per dollar. In this example the steel cent receives twentyfour times more bang for the buck than the 1796 quarter. While these exact ratios do not hold firm throughout, they are an example of artificially weighting the lower-priced coins in a set.
I believe this is done to woo participants into registering as it makes them feel better to be able to have some low dollar coins rack up relatively large points.
As for using PCGS coins in their registry, I think that FS Jeffersons are discounted in PCGS holders relative to NGC holders and, since * coins get greater points, they are essentially discounting PCGS here, too, as PCGS coins will not have a * designation.
Overall, I believe the NGC weighting system is far superior to the PCGS weighting system.
In honor of the memory of Cpl. Michael E. Thompson