What Is A Good Cut Off Value For Slabbing?

With a coin that "ought" to be slabbed due to popular concerns about authenticity or variety, my only criteria is "do I flip this at a profit after factoring the slabbing cost?" For all others, I personally use a value figure of $150, plus the abovementioned room for profit.

General rule of thumb for me is $100.

For the cost of slabbing these days, especially PCGS, a coin with a value of at least $150 is my cutoff.
I've sent coins to ANACS with lower values but they are also half of what PCGS/NGC charges.

My usual rule is $100+ for slabbing

Interesting question, I have been trying to come up with the answer for a couple years now.

As you can see from the posts, the answer would be different for each collector.

For me
Depends on each different coin. Some key date coins should be slabbed.
For example 1909S VDB, 1914D Lincoln's, 1916 D Mercury dimes.
One of the coins in my pile to be graded, is a 1932D Washington quarter.
Most that look at it, will not say if it is real or fake, I will send it in.

Also for me, some modern coins like 1998S Kennedy matte proof and the 1994/1997 matte proof Jefferson nickels. Plus the 2008 rev of 07 ASE.
I like having coins like these in slabs, so there is no question about what they are, if I or my heirs wish to sell them someday.

Other than these examples, I think I am with the others where $100 to $150 value would be a good place to start considering having a coin slabbed.

Lastly I think if a coin, that I might be selling, would bennifit from being professionally graded. Sometimes a coin might be close to making the next grade. If there is a big jump in price for the next grade, it might be worth sending it in.

I've never done it, but logically it should be cost + slab cost (including shipping) X 1.30 = sale price of slabbed coin.

So you have to be fairly confident that the graded condition will add at least 10-50 to the value of the coin.

Super old coins will get this value from vg4, others need au, most modern coins need ms.

On any price guide, if you see blanks in the vg-au column, you need to be more careful.

It seems to me that the best strategy is to grade coins in bulk ( I hear $5 per coin is possible) and have about 1/3 the order be coins that you know will cover the cost of the stabbing for the rest of the coins, mostly MS. 1/3 are coins that are older but bring in a good premium at au, and 1/3 that you know are essentially gambles.