Actually, diamonds in the rough are commonly found in an octahedral form (it's just how some minerals grow due to the bonds made, another example would be magnetite). If an octahedral is looked at in the correct orientation it does in fact look like a rhombus. I'm on mobile so I can't link an image right now but a quick search for diamond octahedral will yield some good images!
Odysseus_the_Boss18 karma
Actually, diamonds in the rough are commonly found in an octahedral form (it's just how some minerals grow due to the bonds made, another example would be magnetite). If an octahedral is looked at in the correct orientation it does in fact look like a rhombus. I'm on mobile so I can't link an image right now but a quick search for diamond octahedral will yield some good images!
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