Nice setting!!! That's a beautiful combination, Sweet Pea - and the variation in melee size on the halo is perfect! Where did you find the setting? did you buy the amethyst separately? It all comes together in a perfect package!
I love that you used white sapphires. I saw a marquise cut white sapphire in a white sapphire halo once and it was so beautiful. I hate that people call them "diamond substitutes." I thought it was a whole different look, but definitely beautiful!