These are rather hoop-like earrings by Navajo artist Louise Joe.
They feature red spiny oyster rondelle beads.
They are about 1 7/8" long by 1 1/8" at their widest point
Total weight: 11.2 grams on my scale.
I placed a quarter there for scale.
Spiny Oyster Shell, Spondylus Brodnip Princess, is found in the Sea of Cortez, Baja California, Mexico.
Sure to make a Fine addition to any collection, or a great gift! Please note: Pictures are enlarged to show detail, remember everything looks bigger on line :)