JET-BLACK GEM Crossword Clue

The most common solution for the crossword clue "JET-BLACK GEM" are ONYX with 4 letters.
We know 1 solutions for: JET-BLACK GEM
Crossword Puzzle Infos
The term 'Jet-Black Gem' is a reference to the gemstone ONYX, which is a black variety of chalcedony quartz. ONYX is known for its glossy, jet-black color and is often used in jewelry and other decorative items.
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