It came back as being Grade One - highest quality! Whooohoo! California-grown saffron ranks up-there with the best saffron in the world.
Here is a short article by the International Organization for Standards, whose standards our saffron was measured with, about how to distinguish between high quality saffron and not-so-great saffron. (Funnily, the article's main photo is not a photo of a saffron crocus, but the information is valid. I am writing them to ask them to correct the photo mistake).