Exodus 28:27

And thou shalt make two rings of gold, and place them upon the two shoulderpieces of the ephod beneath, on the front of the face thereof, over against its joining, above the curious band of the ephod:

Treasury of Scripture Knowledge

Summary

And two other rings of gold thou shalt make, and shalt put them on the two sides of the ephod underneath, toward the forepart thereof, over against the other coupling thereof, above the curious girdle of the ephod.

The curious girdle

Bible References

The curious girdle

Exodus 28:8
And the curious band for fastening it, that is upon it, like the work thereof of the same, shall it be, - of gold blue and purple and crimson and fine-twined linen,