iridescent gemstone: crossword clues

Matching Answer
Confidence
OPAL
95%
OPALS
20%
OPALINE
20%
ONYX
20%
JADE
20%
SARD
20%
CARAT
20%
PEARL
20%
NACRE
20%
TIGEREYE
20%
e.g. Greek Cheese
e.g. O?D (Use ? for unknown letters)