The shadow I did decide on, almost immediately, was Diamond Dove.
What the MAC Website has to say about Iris Apfel for MAC Eye Shadows:
Highly-pigmented powder. Applies evenly, blends well.
1.5 g / 0.05 US oz
(this is a swatch done with my finger, which is how I do all of my swatches. I applied it three times and this is as much pigment as I got.)
(Devastated by the dry swatch, I picked up a 239 brush, got some product on it, and the end result is the swatch above. MUCH better.)
Diamond Dove (deep grey brown, matte) is as described, but is a rather dry matte. Originally I thought it would be reminiscent of Moth Brown, but this is a different texture and darker.
If you swatch this on your finger and rub it on your hand in the store to get the color... well you'll get the crap swatch that I got at first. The shadow actually does apply on the lid like in the second swatch photo, just use a firm brush.
MAC Eye Shadows retail for $15.00 each. Diamond Dove is Limited Edition to the Iris Apfel for MAC Collection. This collection is available at maccosmetics.com, MAC Stores, and counter locations. Click to view the official press release.