Ephod

Aaron was commanded

To wear two onyx stones 

Six tribes each 

Then four rows

Row one

Carnelian, Chrysolite, Emerald

Row two

Turquoise, Sapphire, Moonstone

Row three

Jacinth, Agate. Amethyst

Row four

Beryl, Onyx, Jasper

All set in gold filigree

Not to mention 

The embroidery 

Such was the ephod