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What's the difference between BU and MS?
A brilliantly uncirculated coin is in fact still in mint state, is it not? So, what technically is the difference?

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Jim
MS has taken on some new meanings with the advent of third party grading and the term
"BU" never was well defined.
Just Semantics.
A mint state coin can be in a number of different conditions.
A Brilliant Uncirculated coin is really the same as Uncirculated with some "brillance" left over.
In the old days there was Uncirculated, Brilliant Uncirculated, Choice Unc, Gem BU
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since 8/1/6
UNC = MS60 - MS62
BU = MS63 - MS64
GEM BU = MS65+
Of course those are all rough approximations being as the terminology is a hold over from the days before third party grading.
Back in the 1960's when coin collectors "hated" the US Mint (and were indeed the "evil hoarders" in the eyes of the US Mint) we dared not use the word MINT state let alone use the word MINT in anything we wrote or said!!!!
Actually I do not recall the term mint state until the mid to late 1970's when the hobby began to realize that mint state was a better term to describe uncirculated since uncirculated had been so corrupted in usage to mean less than choice BU coins.
Wrong.
Uncirculated or BU was MS-60/61/62
Choice Uncirculated or Choice BU MS-63 or MS-64
Gem Uncirculated or Gem BU MS-65
MS-66 was sometimes called Gem BU or Gem Unc. Sometimes superb Gem.
Superb Gem Uncirculated or BU was MS-67.
MS-68 and above were miracle coins.
--Severian the Lame
<< <i>Please contact the " Coin Vault " >>
Yeah, "brillant uncirculated gem BU"???? I guess they are covered.
BST successful dealings with:MsMorrisine, goldman86
Brilliant Uncirculated
A generic term applied to any coin that has not been in circulation. It often is applied to coins with little "brilliance" left, which properly should be described as simply Uncirculated.
Mint State
The term corresponding to the numerical grades MS-60 through MS-70, used to denote a business strike coin that never has been in circulation. A Mint State coin can range from one that is covered with marks (MS-60) to a flawless example (MS-70).
Any MS coin then came from a mint set.
BU coins where from the bags or rolls.
I know this is no longer true but I think that is where the terms came from.
<< <i>How long ago it was dipped.
Jim >>
Jim has it just about right!