Koi that is one solid color; Can be regular or metallic; Known colors are red, orange, platinum, yellow and cream
Koi with shiny scales. The name translates into English as "Gold Silver Scales"; There are also Gin Rin versions of almost any other type of koi.
Miscellaneous types of Koi
Koi with areas of blue-edged scales aligned neatly
Koi with colored patterns over a metallic base, as well as koi in two metallic colours
"Hybrid" of Ogon and wild carp. Not Nishikigoi
Long-finned version of all others. Not Nishikigoi