Natural diamonds are graded on a color scale from D (completely colorless) to Z (light yellow or brown). For B2B jewelry manufacturing, selecting the right color range depends heavily on the mounting metal.
D, E, and F color grades look exceptionally bright and white in Platinum or White Gold mounts. If you are setting diamonds in Yellow Gold or Rose Gold, G, H, or I color grades are ideal as the warm metal setting naturally hides faint warmth in the diamond.
We sort and grade colorless parcels with extreme precision, ensuring that the loose diamonds in a layout match perfectly with no visual mismatch.