Rare Blue Diamonds emerging from seafloor

To give you an idea of how much people covet rare colors in diamonds, a blue diamond from South Africa sold for $25 million recently. In fact, blue is a color that seemingly only increases the value of a diamond. Even having streaks of blue can be seen as a positive.

Blue is a rare color in diamonds, however. The conditions for a blue diamond are that they must form at least 410 miles into the ground, inside the lower mantle. Additionally, they typically form on the seafloor, so typical diamond mines won’t come across these. They’re so rare that less then 0.02% of diamonds today are blue in any way, shape or form.

Well, that number might be rising soon!

Seafloor Diamonds

As we discussed in the last post, mining operations are popping up in the ocean to pull diamonds off the seafloor. A much higher percentage than normal have been blue. Now logic would dictate that blue water + diamonds = blue diamonds, but it’s a little more complicated than that.

According to scientists, they’re actually obtaining their color from Boron, which crops up around the same conditions. Since boron occurs so deep, it doesn’t hit the 99% of diamonds that are mined around 100-125 miles deep.

Blue diamonds will still be out of most people’s budgets with a price range of $25-60 million per diamond, but as we find more on the seafloor that could change.