was your trading partner because of your numerous products. They exchanged turquoise, purple and embroidered cloth, fine linen, coral, and rubies for your merchandise.

Diamond

The sin of Judah is written
with an iron stylus.
With a diamond point
it is engraved on the tablet of their hearts
and on the horns of their altars,

You were in Eden, the garden of God.
Every kind of precious stone covered you:
carnelian, topaz, and diamond,
beryl, onyx, and jasper,
sapphire, turquoise and emerald.
Your mountings and settings were crafted in gold;
they were prepared on the day you were created.

General references

and onyx with gemstones to mount on the ephod and breastpiece.