No size requirements: I'd love something peachy pink, purpley mauve, bright neon blue, mint green, or raspberry colored. Or sphene with a great fire to it!
I have a small pair of bright tsavs (3.38 mm each) set in yellow gold studs. Also a pair of loose 4 mm green sapphires, and some yellow garnets. If interested, you can shoot me an email through DB. I'll dig around and see if I have anything else, too.