Hannah - I think that's a cute idea to wear your "house" band like that! My original wedding band is also a 3mm white gold band.
I am baking them to somewhat "lower" the color of the czs so they aren't quite so white. I put them in a cold oven in a glass dish and set the temp to 400 and let them bake for 2 hours then turn off the oven and I don't take them out till the oven is cool again. I will have to bake them again though. I didn't notice too much difference the first time around.
I'm NOT a photographer!! In real life I think that the berricle 2mm is very sparkly! Especially compared to my 2mm diamond 1/2 eternity (the one on the bottom with the milgrain). The diamond "chips" in that one barely sparkle, they are more glittery. I hope that you aren't disappointed with yours! I love mine, I wore it solo yesterday.
You'll have to post pics when you get them! Berricle shipped to me super fast!