I sure hope you have some other way of graduating.

There are several very dark red roses that sometimes appear black or brushed with black: Oklahoma, Inkspots, Black Ice, Black Jade, Lavaglut and Kuroshinju.

A truly black rose is not impossible -- there are black pansies and tulips -- but it would take a very concentrated effort, lots of room for growing seedlings, and probably many years.

Good luck,

Karl

Here is a link that might be useful: Some rose pictures

Go to Roses Hybridizer's Association site:
http://www.rosehybridizers.org/index.html
You will find everything you need: infos and links to other sites.