Wagoi-fully scaled Koi
Doitsu -partially scaled Koi
Leather-small scales along the dorsal (top) and none on the lateral line (sides)
Mirror- large scales along the dorsal and lateral lines
Yoroi/Ishigaki-partially scaled other than along dorsal and lateral lines
| Colors | |
| Aka (ah-kah) | Red as a base color |
| Beni (ben-ē) | Orange-Red usually as a base color |
| Hi (hē) | Red markings |
| Ai (eye) | Blue |
| Cha (chah) | Brown |
| Ki (key) | Yellow |
| Yamabuki (yah-mah-boo-key) | Yellow |
| Shiro (sheer-row) | White |
| Sumi (sue-mē) | Black markings |
| Karasu (car-ah-sue) | Black as a base color |
Koi Varieties
| Kohaku (cō-hah-kū) | White Koi with bold Red patches |
| Sanke (sawn-kay) | White Koi with Red patches and Black spots |
| Showa (shō-wah) | Black, Red, and White Koi |
| Utsuri (oot-sir-ē) | Black Koi with White, Red, or Yellow markings |
| Bekko (beh-koh) | White Koi with Black spots |
| Asagi (ah-saw-gē) | Light blue or grey scaled Koi with Red accents |
| Shusui (shoe-sw-ē) | Light Blue scale-less Koi with Red accents |
| Goshiki (go-she-key) | White Koi with Red markings and Grey reticulation on scales |
| Koromo (koh-row-moh) | White Koi with Red pattern and Blue or Black edges on scales |
| Hikari Muji (he-kah-rēmoo-jē) | Solid colored metallic Koi |
| Hikari Utsuri (he-kah-rēoot-sir-ē) | Metallic Utsuri and Showa Koi |
| Hikari Moyo (he-kah-ree moy-oh) | Metallic Koi with pattern |
| Kawarigoi (kah-wah-rēgoi) | Non-metallic Koi |
Scale Variations
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Kado Ginrin: edges of scales only
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Pearl Ginrin: circular ginrin in center of scales
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Diamond Ginrin: brilliant scales which sparkle like diamond facets
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Beta Ginrin: entire surface of the scales sparkle
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Kinginrin (keen-geen-deen)-highly reflective sparkly scales