Re: all the discussion about moissanite... allow me to jump in if I may, since the boyfriend and I have been e-ring shopping and I've been obsessively researching everything, I have learned a LOT over the past few weeks!
Older moissanites did have a tint to them - but newer moissanites have much less of a tint, and now there is something called Amora (previously called Mira) which is made by re-cutting the moissanite in a way that gets rid of all the tint - and it may be coated in something too, that part I'm not sure of, but anyway, it is supposed to be absolutely BEAUTIFUL. It's what I've chosen for my e-ring, actually

I haven't seen it in person yet, but there are lots of comparison shots on the message boards at betterthandiamond.com
(Quick background info: BTD is the company that buys the moissanite [there is only one company allowed to "grow" moissanite currently, C&C] and then re-cuts them into their patented Amoras. There is about a 20-30% loss rate in the re-cutting process though, plus the labor, so that's why they cost more than regular moissanite.)
I may sound like I'm sponsored by moissanite, but I assure you I am not, I just am pumped about having this as an alternative to diamonds! (I want a MEGA sparkly, colorless stone, but I don't want to support blood diamonds, child labor, OR the DeBeers marketing machine....)
Oh, and for anyone who's curious, I ended up going with an Amora (a treated moissanite) over an Asha because moissanites are far more durable. An Asha is a diamond-coated CZ, but they still have the same issue that CZ has, which is that it's porous, meaning it absorbs oils from our skin, lotions, etc (which is why the ladies above me said their CZs looked cloudy) Asha is supposed to help with this, but from my understanding the problem still isn't solved 100%. This may not be a problem if all you want is studs or something, but since I'm sentimental and wanted to be able to hand down my e-ring someday, I went with an Amora.
I can't recommend the message board at betterthandiamonds.com enough - fabulous resource, and the ladies are enthusiastic about helping potential moissy fans
Check out the settings at moissaniteco.com and ashadiamonds.com (both are owned by the same people). You can select a setting from moissaniteco.com and have it set with an Amora, which is what I'm doing, since they are an authorized re-seller of Amoras.
Oh, and one final option - a colored gem! Someone else recommended this, and I definitely looked into this a lot. Colored gem are VERY inexpensive if you buy them loose and pre-cut, and then you can have them set separately. Look at photos of gems and check out all the different colors - there is WAY more out there than just sapphire, etc. I actually ordered 4 different gems, all different colors, and of good sizes, and I think the most I paid was $66. (If you're curious, I got a yellow labradorite, which was a beautiful soft yellow; 2 different cuts of kunzite [a cushion cut and a round cut], which is a very sparkly pale pink; and a big round morganite, which is a very pale peachy-pink). One of the kunzite was only $35 and the other was only $25 I think, and most gem sites for hobbyists (i.e., rock collectors) have a generous return policy, so a lot of ladies will order the gem to make sure they like it before they send it off to their jeweler to have it set, and if they don't like it they just send it back to the original gem site. Other beautiful gems worth checking out: prasiolite, aka green amethyst (very pale green) and andasite, which comes in a beautiful teal I had never seen before.
Wow, this turned into a novel... sorry, I just wanted to share all the different options that I've learned about in the past few weeks, since before I started my research I thought my only options were a diamond or a classic (boring, to me) gemstone like a ruby or a blue sapphire or something.
I hope this helps someone else!
