The ring:
The earring:
I am going to change my mind about the earring-definitely could be a diamond, but what about amethyst or tanzanite for the more purple stones?
It is difficult to say with that photograph. I don't think tanzanite. Tanzanites are heat treated to bring out the color, and it just doesn't look like the variety of bluish toned colors to me.
Did you mean to say alexandrite, which would be more of the purplish/reddish hue, since you did mention amethyst? It could be synthetic alexandrite, perhaps, but it is difficult to tell. It looks more like pinkish colored stones to me, in my opinion.
Maybe a rose de France amethyst, or rose zircon, or pink sapphire?
I zoomed in on the NamUs photo of the earring and the top two stones look like garnet to me, with pink stones below, and the bottom left stone doesn't match quite right with the other pink stones.
Also when I really really zoomed in on the photo, in the triangular piece at the top, it has like blotchy copper looking pieces on it. I wonder if the top part is just a base metal? Like it was plated?
Also, on the underside of the lower left side of the "bee wing" for lack of a better word, looks to be the color red, now whether that is red in color by design or blood, is anyone's guess, I guess. You have to Zoom in the pic very large to see this.