Mini rectangular shaped Night Sky inlay ring. Navajo crafted. Set in solid sterling silver and inlayed with genuine black jet and cultured opal. The rectangular inlay measures 1/4" x 5/8". It is currently a size 6 and can be adjusted up or down 2 sizes. The wide taper of the shank make for a comfortable fit on any finger. Complete with a certificate of authenticity. Navajo crafted rectangular shaped inlay ring NIGHT SKY JEWELRY COLLECTION: Inspired by the clear dark night skies of the Navajo Nation. The Black you see is called "JET "and is a fossilized wood, which has been compressed over millions of years. Multiple pieces of stone make up the mosaic image. The stars are made from pieces of silver and with the shooting star are made from Cultured Opal.