The best mid priced Grado In your opinion?

I am considering a Grado mostly because I can audition them but haven't got a good starting reference . Amongst their full line of products which mid level priced product less than $700, I'll say arbitrarily, is the best and why? It can be a very inexpensive one that is simply better and a giant killer, such a suggestion is more than welcome, I don't grade a product based on it's price, don't be afraid to voice your opinion. Thanks
I am using an old Grado Signiture 8M with a Prestige Gold replacement stylus. It benifits greatly from the Cartridge Man Isolator. I like it better than my Reference Sonata.
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Ok Ok I get the idea some of you knew I meant Grado Cartridges. Please be serious thanks- Iappreciate those who know that $700 is not mid price for Grado Headphones.

The table is still undecided because it is being bought by somone else and will be a surprise, it may be one of the following;
A VPI simple Scout or Scoutmaster JMW 9 or better arm, if it will work with a Grado Cartridge not headphones.
Possibly one of the Consonance tables because that is what we have access to. The only one that I really know is good is the droplet but I doubt they going to spend that much, Morch arm, I forget the modelof the arm but it is a Morch.
Possibly an MMF-7 ?Arm maker but it is the Czech source, but that comes with a fairly good Goldring /Eroica cartridge not headphones, but if a better Grado is sensible I can ask for that change.
seriously, the grado prestige gold mm (refined and rugged). sounds as nice as many more expensive mc cartridges, and for less than 300, is well worth it.