Puka shells -silver tone with a Jasper pendant.

Purchased this Beautiful necklace at an Estate Sale in the 90s. Do not know too much about it as it appears to have puka beads strung with silver tone accent beads and a stunning turquoise Jasper Oval stone. The length from the necklace is approx 10 inches w/o adding the oval stone in the measurement. The oval stone pendant measures 1 1/2 in length an a little over 1 1/4 inch across.