Likewise, there is an array of different diamond cuts. The vast majority of black diamonds are brilliant cut and, as you may guess, this makes them go perfectly with brilliant cut white diamonds. However, other mixtures that people find attractive include baguette- or emerald-cut white diamonds featuring small brilliant cut black diamonds all around them.
Black and white diamond engagement rings are found in almost every jewelry store these days. Also, it really isn't difficult to customize your own b&w diamond best friend ring. One thing you can consider along those lines is finding a diamond-and-gemstone ring, and then having a jeweler some or all of the gemstones with black diamonds-for a totally stunning and one-of-a-kind cheap promise ring.
It's best, if you can, to see a black diamond and b&w diamond ring in person, for black diamonds by their nature are very hard to accurately capture the fullness of in photographs.