The most common and most likely answer to this crossword clue is the 4 letter word OPAL which also is the latest solution we found used in LA Times in 2020.
Lustrous gem crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters | 
|---|---|---|
| OPAL | 100 % | 4 | 
Words with a meaning similar to the clue: Lustrous gem
These words may or may not be a possible solution to this crosswords clue.- jewel
 - gemstone
 - precious stone
 - gem
 - rock
 - fancy
 - stone
 - diamond
 - marquise
 - paragon
 - rough
 - water
 
Crossword Answer definitions
OPAL noun- A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity, of the chemical formula SiO2·nH2O.
 - A colloquial name used in molecular biology referring to a particular stop codon sequence, "UGA."
 - Any of various lycaenid butterflies of the genus Nesolycaena.
 
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution