Student Video Finding the Perfect Diamond Why It's Impossible
GLORIA CHYR: Hi there. My name's Gloria Chyr. And for the next few minutes, I'll be talking about how to find the perfect diamond and why that might actually be impossible. Let's start with what a perfect diamond looks like. A quick Google image search for the perfect diamond yields this as the first result. And it does look pretty perfect. But just because it looks perfect doesn't mean that it actually is. To determine if a diamond is really perfect, we have to look at its structure. A diamond consists of carbon atoms arranged in what we call a crystal structure. More specifically, diamond form a cubic crystal structure made up of tetrahedraly arranged atoms as shown in this 2D depiction. An important thing to note is that diamonds are not a stable form of carbon. They're what we call metastable, which means that they're energetically unfavorable, but there is a high activation energy for it to decompose so it stays how it is for a very long time....