I have several girlfriends who do not yet have boyfriends, but they still know which engagement ring they want. Women want diamonds! The Knot says that almost half of the women who visit their website are not even engaged.
My beautician has a diamond tattoo on her chest. So do a lot of other people I have meet. People love diamonds so much that they put a mere symbol of a diamond permanently on their bodies. When selling diamonds on the road I have passed Diamond BBQ, Diamond Cleaners, and even Diamond Elementary School. People just love diamonds.