SILPADA Rock Crystal Black Lip Shell Quartz Sterling Silver “Elements Necklace”. This a double sided/reversible pendant, such a beauty with green rock crystal then flip the other side, the beauty of the black lip shell sheen and stabilized quartz. A thick stone pendant with at approximately 1.5” its widest and length with sterling silver. The chain is 18” plus 2” extender. Ask any questions that you may have. Thanks for looking.