Housekishou no Maid - Vol. 3 Ch. 14.2 - The Jeweler's Maid Riding Through the Night

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Ok, this chapter really disappointed me, from the gemmological point of view: moissanite and artificial diamonds are two very different things. Moissanite is the name given to gem grade silicon carbide, and can be both natural or artificial; artificial diamonds are exactly that, and are identical in every aspect to natural diamonds. There is no method to distinguish a natural diamond from an artificial one.
All the distinctions she gives are also completely bogus: diamonds CAN be birefringent and they can be of absolutely ANY color. You can look up the Aurora Butterfly of Peace for an example.

That said, there are methods to tell moissanite apart from diamonds by (an extremely trained) eye: if they are bot cut in the exact same shape, then the refraction pattern will be different, since they have different refractive indexes
 
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Ok, this chapter really disappointed me, from the gemmological point of view: moissanite and artificial diamonds are two very different things. Moissanite is the name given to gem grade silicon carbide, and can be both natural or artificial; artificial diamonds are exactly that, and are identical in every aspect to natural diamonds. There is no method to distinguish a natural diamond from an artificial one.
All the distinctions she gives are also completely bogus: diamonds CAN be birefringent and they can be of absolutely ANY color. You can look up the Aurora Butterfly of Peace for an example.

That said, there are methods to tell moissanite apart from diamonds by (an extremely trained) eye: if they are bot cut in the exact same shape, then the refraction pattern will be different, since they have different refractive indexes
Really nice to see someone who understands ( or at least, I hope so ) correcting things from the manga

Well, it's a manga after all, but still. Nice to know

Out of curiosity, if you've read all the chapters, is this the first error you found on the manga? Or the first "big" one? I would imagine that there are more

I wouldn't mind adding a curiosity page to each chapter with a few points from someone who knows about jewels, in case you or anyone else would be willing to do it
 
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Jun 5, 2018
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Really nice to see someone who understands ( or at least, I hope so ) correcting things from the manga

Well, it's a manga after all, but still. Nice to know

Out of curiosity, if you've read all the chapters, is this the first error you found on the manga? Or the first "big" one? I would imagine that there are more

I wouldn't mind adding a curiosity page to each chapter with a few points from someone who knows about jewels, in case you or anyone else would be willing to do it
I am not a gemmology expert, but I deal with optical properties of materials for work and just the last week I made a deep dive into synthetic gems for a particular client (mainly sapphires, diamonds and diamond alternatives), so when they mentioned moissanite it ringed, like, ALL the bells. Some of the other gems mentioned before I didn't even knew they existed...
 

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