Get a diamond.. I am copying and pasting a conversation I had with someone yesterday because it’s relevant to this board.
Personally I believe there is nothing that can quite beat a diamond. People often justify buying moissys because Moissanite has a Mohs scale of Hardness of 9.25 and diamond has a 10. What they fail to realise is that the ‘hardness’ really means resistance to scratching and the Mohs scale is non-linear. Corundum (rubies) is a 9 on the Mohs scale but in reality a diamond is 5 times ‘harder’.
Have you heard of people’s moissanite rings getting a grey tinge or stain on them?
The rainbow oil slick stain that occurs with many moissanites occurs when silicon carbide (what moissanite is made out of) is exposed to air and oxidises to a thin layer of silicon dioxide. This CAN occur in conjunction with, and may be enhanced by the kind of adhesive used in the cutting process, or whatever they use to mount the setting. To quote wikipedia, the rainbow-like oil-slick stain is caused by a passivation layer of silicon dioxide that forms on the surface. Nevertheless it can also occur on its own.
At one point, I too was considering asking my Fiance for a moissanite. Because they are less expensive compared to equivalent natural diamond carat weights, they are conflict free, environmentally friendly, etc.
I ALMOST feel for the advertising but then, being a scientific researcher myself, I started digging into hard fast facts and the chemical structure, etc. What I discovered was very disappointing. I think I shouldn’t have to pay >$1000 for a synthetic gemstone that requires regular polishing and is more susceptible to scratching then a regular diamond.
Do other gemstones crack or get cloudy? Yes. Do some natural gemstones oxide? Absolutely. But it almost never happens with the same frequency as moissanite.
I have heard of several people who have contacted Charles & Covard directly regarding this, and they were sent a cleaning cloth by C&C, and were recommended by them to use a silver polish to clear the oil slick stains. And what does a silver polish do? It removes oxidation. Go figure.
As for the environmentally friendly spiel, most people with moissanite tend to have white-gold bands. These bands require regular rhodium plating and it’s terrible for the environment. So in all likelihood their ring isn’t environmentally friendly even if it’s a moissanite.
They don’t tell you all of this when you buy a moissanite do they?
I’m not trying to beat anyone down who has a moissy, if you love it, it’s yours and my opinions shouldn’t matter. Personally I wouldn’t ever buy a moissy for this and the reasons outlined above.