It is a giant tetrahedral covalent structure meaning there are no free ions or electrons and the strong covalent bonds require hige amounts of energy to break
I think in any case, the diamond would have to be in small pieces to prevent any fracturing. The teeth of the serrations would have to be individual diamonds to prevent a single strike from fracturing the whole thing.
There are diamond blades...
http://en.wikipedia.org/wiki/Diamond_knife
So they're used in medical and surgical fields, but I think we're talking about chopping and slicing applications. I don't think a diamond knife (or any other blade) the surgical sharpness could stand up to any sort of "ordinary" applications and I don't think any crystalline structure (glass, obsidian, quartz, whatever) because it chips rather than dulls.
https://www.physicsforums.com/threads/whats-the-sharpest-knife-on-earth.161956/
And since this was brought up in my notifications I'd like to add another point.
A diamond knife will never be the sharpest knife. Diamond's molecular structure means that it can only be sharpened to a certain extent, beyond which it'll start to dull and/or deform. I believe the sharpest knife ever made was of a glass-like substance, possibly obsidian, because it doesn't have a fixed structure, and so the blade can get atoms thick.
I agree with @neon I personally don't care for the glitz and glam (same way I wouldn't want a giant expensive wedding, and also if I were to start a life with someone I'd rather not start it by being broke, like I said), I'd also be fine with no ring too. Plus I'm a bit of a tomboy I guess, I don't really wear jewelry anyway. And an object shouldn't really matter that much. It's all just jewelry companies trying to convince you you need a "symbol of your love" so they can sell you a ridiculously overpriced rock. (My god- parents have wedding tattoos of infinity symbols inscribed with the others name and the date they've been married for almost twenty years now, and I would consider a wedding tattoo too) if not diamonds, what would you guys want?
I like the idea of tattoed wedding bands on the ring finger (you'd never lose the "ring"), or I see these guys with obsidian or black gold simple bands and I love those.
If you could afford to spend that much on a ring
Like, I want a gorgeous ring ( that doesn't have to be real ) but I'd rather it be affordable than a tiny expensive rock. If you really love her you'd make sure she's financially stable rather than adorning the largest ring you can afford on her finger.
So...I think saving up two months salary and buying your wife something to be proud of shows how much commitment you have to marrying them. It changed how I looked at the crazy guy courting me. It is a constant reminder of how much love and dedication my husband has for me.
As I said above my god- parents have some beautiful wedding tattoos but they skipped the engagement ring because they decided they wanted to show their commitment on their skin for the rest of their lives so I guess there's more than one way to make a statement about commitment. A ring can be a sweet gesture but it can be a bad financial decision for some couples and there are other equally romantic alternatives.
This is exactly why I think you should at least get a CZ ring if you insist on getting something so meaningless even though you can't afford a fancy ring. It's still a symbol of your love that will last forever and all that bullcrap (because scientifically speaking it's the exact same fucking thing and even most jewelry can't tell the difference these days) but at least you won't be starting your new life together broke.
How much do y'all think rings cost? Lol It's not like buying a house or car. Couple grand can buy you a lot of ring. my husband and I are in the service industry so two months salary isn't all that much. Saving the money gave my impulsive husband time to get to know me more and reflect on the decision.
http://en.wikipedia.org/wiki/Diamond_knife
So they're used in medical and surgical fields, but I think we're talking about chopping and slicing applications. I don't think a diamond knife (or any other blade) the surgical sharpness could stand up to any sort of "ordinary" applications and I don't think any crystalline structure (glass, obsidian, quartz, whatever) because it chips rather than dulls.
https://www.physicsforums.com/threads/whats-the-sharpest-knife-on-earth.161956/
A diamond knife will never be the sharpest knife. Diamond's molecular structure means that it can only be sharpened to a certain extent, beyond which it'll start to dull and/or deform. I believe the sharpest knife ever made was of a glass-like substance, possibly obsidian, because it doesn't have a fixed structure, and so the blade can get atoms thick.
leedle
Without financial problems.
Like, I want a gorgeous ring ( that doesn't have to be real ) but I'd rather it be affordable than a tiny expensive rock. If you really love her you'd make sure she's financially stable rather than adorning the largest ring you can afford on her finger.