Diamondseeker2006 and AprilBaby....thankyou. I think that G&co is a great choice for anyone that doesn't want to go the custom route. I gave them the measurements for my stone and the halo is perfect with no spaces or gaps. Their diamond quality is high (VS1/VS2) and the mount is well made.
Lotus99 - I have to agree that this setting allows the personality of the stone to shine. I was afraid that the halo might take away from the stone but I think the exact opposite has occurred. The center is now properly showcased and you really do notice the faceting more.