ELI5: Explain Like I'm 5

Crystallographic defects in diamond

Ok kiddo, imagine you have a beautiful toy car made out of Lego blocks. Now, sometimes when we build something out of Legos, we might accidentally put a block in the wrong spot or leave a spot empty. This creates a defect or a mistake in our Lego creation, right? Well, the same thing can happen when we make diamonds.

Diamonds are made up of little pieces called atoms that are all connected together. Sometimes, when diamonds are forming, the atoms don't quite line up perfectly. This can create what are called crystallographic defects. There are a few different types of defects that can happen, so let's talk about them.

First, there's something called a vacancy defect. This is when an atom is missing from its proper spot in the diamond. It's like if you were building a tower out of blocks and accidentally left a block out of the middle - there would be an empty space where it should be. In diamonds, this can happen when an atom gets knocked out of place during the formation process.

Next, there's something called an interstitial defect. This is when an atom is in the wrong spot - it's not where it's supposed to be. This is like if you were building a tower out of blocks and accidentally put a block where it doesn't belong - sticking out of the side maybe. In diamonds, this can happen when an atom gets squeezed into a space where it doesn't fit.

Finally, there are something called substitutional defects. This is when an atom gets replaced by a different kind of atom. It's like if you were building a tower out of blue blocks but accidentally put in one red block - it would stand out and be different. In diamonds, this can happen when a different type of atom gets mixed in during the formation process.

Now, it's important to understand that these defects can have different effects on the diamond. For example, some defects might make the diamond appear a different color or affect how it conducts electricity. But overall, diamonds with more defects are typically less valuable because they are not as perfect and rare as diamonds without any defects.

So, there you have it kiddo - crystallographic defects in diamonds are kind of like mistakes or changes in the way the atoms line up, and they can affect how the diamond looks and acts.