Unfortunately, I don't. They face-up well. I thought about sending them to GIA or another grading lab just for curiosity, but decided it wasn't worth it since Lightbox published their spec ranges.
Hopefully others are able to provide diameters for your pendant reset, I think you're probably safer going with a smaller stone if you need a 6.0mm stone. But, I hope you get 2 1ct pendants to make studs with!