One of our most unique rings. Set in solid sterling silver with genuine black jet and cultured opal. The Night Sky design begins with a circle in the center with side inlay elements. Measuring approximately 1/2" in width, the design tapers down on the sides to about 1/8". Complete with a certificate of authenticity along with our lifetime lifetime warranty. NAVAJO CRAFTED INLAY RING WITH NIGHT SKY PATTERN 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 the shooting star are made from Cultured Opal.