With the blood, ice your watch, rock your rocks
Black Thought is talking about Conflict Diamonds, better known as “Blood Diamonds” here. Most people buy jewelry with no concern as to where it came from.
Here’s a good song that talks about this: http://rapgenius.com/Lupe-fiasco-conflict-diamonds-lyrics
To help improve the meaning of these lyrics, visit "Rolling with Heat" by The Roots (Ft. Talib Kweli) Lyrics and leave a comment on the lyrics box