Exodus 28:18
And the second row shall be an emerald, a sapphire, and a diamond.
Torrey's Topical Textbook—AKJV

Jeremiah 17:1
The sin of Judah is written with a pen of iron, and with the point of a diamond: it is graven on the table of their heart, and on the horns of your altars;
Torrey's Topical Textbook—AKJV

Ezekiel 28:13
You have been in Eden the garden of God; every precious stone was your 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 your tabrets and of your pipes was prepared in you in the day that you were created.
Torrey's Topical Textbook—AKJV