I am shopping for an engagement ring. I decided on a radiant solitare, with channel set diamonds on both sides of the center stone. But A lot of new "diamond alternatives" have shown up on the market. And I have been wondering if any of them could be convincing enough to be placed in the channel setting instead of diamonds??? I have heard of Moissanite, something called "Russian Brilliants" & then white sapphire... What do you think? Do you know anything about these stones??? Thanks Alot!!!