I haven't seen any of these in person but these are on the recommended vendor lists (I'm pretty sure anyway). Have you seen a rose cut in person? They are their own breed of awesom. You should probably make sure it's returnable, just in case they aren't what you're expecting.
Love Affair Diamonds, JYB Jewels and JuliaB Jewelry all sell them and have videos on their Instagrams. I haven't seen any in person but Erica from LAD said she prefers rose cut moissanite to rose cut diamonds because they aren't as hit or miss.
So, it' no secret that I've never loved rose cut diamonds. I don't buy them for inventory, though I've tried for years to find nice ones, hoping to learn to love them lol. It' the windowing that drives me batty. But rose cut moissanites are a totally different animal! I LOVE them! The double refraction isn't obvious, but I think it's what helps them not look as transparent, plus they have deliciously high domes - like little snow balls or ice sculptures.