These are gorgeous Native American Women's dangle/stud post Earrings.  Elegant and beautiful Southwestern collectible jewelry. Thes pieces were handmade by different artists  and purchased directly at the Southwest, US. 

Measurements and Descriptions:

A1- Multi Stones Inlay Dangle Earring with silver plated Ear wire posts. Unsigned. 

       Drop Length: 2 in 

       Weight: 1 gram

A2- Block Oval Turquoise with fan shaped Bezel setting. Sterling Silver Stud posts. 

       Length:  1 inch

       Weight: 3 grams

A3- Saucer and cone shape dangle earrings. Sterling Silver ear wire posts. 

       Drop Length: 2.5 in

       Weight: 6 grams

A4- Turquoise stone with squash blossom petal dangle earrings. Non-Pierce screw Closure. 

       Drop Length: 2 in

       Weight:  9 grams