round diamond knife edge crossover
Diamond crossover ring. This design is known as a knife edge profile crossover. This is because of the blade like profile of the ring (no it doesn't feel sharp when worn before you ask!) & because of the angled shank.
The ring in the photo is set with a GIA laboratory graded 0.20ct 'E' colour, 'SI2' clarity diamond. This design scales up well though so we could also make this ring with a larger diamond of any grade.
The metal of the ring in the photo is Palladium but this design also works well, & can be made from Platinum, 9ct & 18ct gold (rose white or yellow).