Verses with the word carbuncle in the Old Testament (3 verses):

Exodus 28:17
And thou shalt set in it settings of stones, even four rows of stones: the first row shall be a sardius, a topaz, and a carbuncle: this shall be the first row.

Exodus 39:10
And they set in it four rows of stones: the first row was a sardius, a topaz, and a carbuncle: this was the first row.

Ezekiel 28:13
Thou hast been in Eden the garden of God; every precious stone was thy covering, the sardius, topaz, and the diamond, the beryl, the onyx, and the jasper, the sapphire, the emerald, and the carbuncle, and gold: the workmanship of thy tabrets and of thy pipes was prepared in thee in the day that thou wast created.