Kujaku are koi with a solid white body and black pine cone netting (similar to Matsuba), with the addition of a secondary color overlaying the white of the body. The secondary color of Kujaku can range from yellow, to orange, to deep red.
What To Look For
The balance of the three colors of Kujaku (white base, secondary color, and black pine cone pattern) is very important. Ideally, the black pine cone pattern should be uniform, and symmetrical on both sides of the dorsal line. Try to avoid Kujaku where the black net pattern is too dominant, or fades from view in some areas.
The edges between the white base color and the yellow, orange or red secondary color should be clean and crisp, with no blurry edges.
At one point, the highest quality Kujaku were only those that displayed a clean platinum-white head, with no secondary color intruding into the head area. Now, however, high quality Kujaku can have the secondary color on a portion of the head, provided there is no black present, and the color forms an interesting pattern.