I use ArtCam for professional jewelry design myself, and after many years I still haven't found anything better for jewelry work than standard profile bits. 15 degree work well, more becomes problematic and less VERY expensive and fragile. .060 end mills to square up edges work, up to .125 for fast roughing.
Try Bits and Bits (www.bitsbits.net) for a good selection. They resharpen too. Don't go for cheap, even the good ones are only 8-10 bucks each, and with cutting wax you will drop the bits and break the tips off WAY before you can ever dull them. In normal use it never happens.
.005 works for VERY fine work but takes forever, .007 for general use, .010 for low detail work. If you get linen lines just mess with the stepover a bit or play with cut direction.
NEVER use candle wax. It is too low temp and gummy. Use jewelers wax, medium (blue) actually works best - the hard (green) meant for cnc doesn't hold detail any better but is much more prone to cracking and chipping.