Farbskala
| Kategorisierung | Alte Bezeichnung | Neue Bez. GIA |
Internationaler Begriff | deutsche Übersetzung |
|---|---|---|---|---|
| Colorless | River | D | Exceptional white + | Hochfeines Weiss + |
| E | Exceptional white | Hochfeines Weiss | ||
| Top Wesselton | F | Rare white+ | Feines Weiss+ | |
| Near Colorless | G | Feines Weiss | ||
| Wesselton | H | White | Weiss+ | |
| Top Crystal | I | Slightly tinted white | Leicht getöntes Weiss | |
| J | ||||
| Faint yellow | Crystal | K | Tinted white | Getöntes Weiss |
| L | ||||
| Top Cape | M | Tinted color 1 | Getönt 1 | |
| Very light yellow | N | |||
| Cape | O | Tinted color 2 | Getönt 2 | |
| P | ||||
| Light yellow | Q | Tinted color 3 | Getönt 3 | |
| R | ||||
| Light yellow | yellow | S-Z | Tinted color 4 | Getönt 4 |