Purple Spiny Oyster Needlepoint Triple Pendant Necklace

Insanely gorgeous needlepoint necklace done with purple spiny oyster. I tried to count the stones and lost count too many times. There are three huge rosette conchos covered in settings. The chain is handmade as are the dangles at the bottom. 

It is 20" long. Diameter of the side rosette concho is 1 3/4" and the center one is 2 1/4. Center pendant has a total length of 4". Has a hand formed "J" clasp that does not lock. Marked sterling, Zuni style. Weight: 73 grams.