Amethyst
3 verses in 2 books of the King James Bible.
By Book
Every Occurrence
Exodus 28:19And the third row a ligure, an agate, and an amethyst.
Exodus 39:12And the third row, a ligure, an agate, and an amethyst.
Revelation 21:20The fifth, sardonyx; the sixth, sardius; the seventh, chrysolite; the eighth, beryl; the ninth, a topaz; the tenth, a chrysoprasus; the eleventh, a jacinth; the twelfth, an amethyst.