The best answer is OPAL for crossword clue Milky Gem has been discovered. OPAL's lenght is 4 . You can accurately search based on a specific length. There are also 3 related clues available.
| Length | Word | Clue |
|---|---|---|
| 4 | OPAL | Milky Gem |
| Length | Word | Clue |
|---|---|---|
| 4 | ONYX | Jet-black Gem |
| 5 | PEARL | Gem From An Oyster |
| 6 | SPINEL | Rubylike Gem |