Precious Stones: Diamond
Source: TTT
Exodus 28:18
in the second row a turquoise, a sapphire, and a diamond;
Jeremiah 17:1
“The sin of Judah is written with an iron stylus, engraved with a diamond point on the tablets of their hearts and on the horns of their altars.
Ezekiel 28:13
You were in Eden, the garden of God. Every kind of precious stone adorned you: ruby, topaz, and diamond, beryl, onyx, and jasper, sapphire, turquoise, and emerald. Your mountings and settings were crafted in gold, prepared on the day of your creation.