A4 Mandolins
Here is a guideline to give an idea of ballpark prices:

I start with a price of $2500.  Maple back and sides.  Mahogany Neck.  Select Engelmann spruce top
with traditional single traverse brace or X-bracing available. Compound radiused ebony fingerboard
with 24 frets.  Ebony headstock overlays, Flur-de-Lis inlay. Double rope and ivoroid rosette and
bound sound hole.  Sunburst coloring.  Single ivoroid binding on body, fingerboard and sound hole.  
Spirit Varnish / French polish shellac finish.  Nickel plated Allen TR-1  tailpiece. Ivoroid tuner
buttons and a hard case.
Click on an image for a larger version.  
Some things that raise the price are:
Blond color, fancy custom inlay, side sound port, Virzi tone producer, James deluxe tailpiece and any custom
work that takes extra time, including design time.

Some things that lower the price are:
Plain maple back & sides, nitrocellulose lacquer finish, single color dark stain, single color plastic binding,
simple rosette, unbound sound hole, unbound fingerboard or unbound back.