[CurlyDave]

Sloppy journalism. Diamond is not an element; it is formed from carbon. Likewise aluminum oxide is not an element.

Pure diamond is 100% carbon, which is an element. Diamond is just a rare, crystalline form of the element carbon.

The sentence structure is as awkward as a three-legged goose, but the science is not really wrong.

[JRandomFreeper]

Carbon is the element listed on Table of Elements (# 6 on the list, if I recall correctly) Diamond is the form that element can take.

/johnny