Exodus 25:7

shoham stones, and stones for setting for an ephod, and for a breastplate.

Exodus 28:4

And these are the garments which they make: a breastplate, and an ephod, and an upper robe, and an embroidered coat, a mitre, and a girdle; yea, they have made holy garments for Aaron thy brother, and for his sons, for his being priest to Me.

Exodus 28:6-30

and have made the ephod of gold, blue, and purple, and scarlet, and twined linen, work of a designer;

Treasury of Scripture Knowledge

Summary

Onyx stones, and stones to be set in the ephod, and in the breastplate.

Ephod

General references

Bible References

Ephod

Exodus 28:4
And these are the garments which they make: a breastplate, and an ephod, and an upper robe, and an embroidered coat, a mitre, and a girdle; yea, they have made holy garments for Aaron thy brother, and for his sons, for his being priest to Me.

General references

Exodus 35:23
And every man with whom hath been found blue, and purple, and scarlet, and linen, and goats' hair, and rams' skins made red, and badgers' skins, have brought them in;
Exodus 39:2
And he maketh the ephod, of gold, blue, and purple, and scarlet, and twined linen,