Materials: 14K solid gold, Herkimer Diamond Crystal, Yellow Diamond, ****If you need a different length of chain, let me know.***** Wearing your birthstone brings you good luck and protects you. The diamond will increase your inner strength and remove any negative energy. ＊Herkimer Diamond Crystal The herkimer diamond is a double pointed quartz crystal that has already been faceted by nature. It was first found in Herkimer county in New York. It is a very powerful balancer of the body and emotions. Double terminated equals super power. - Stone: Herkimer diamond: 3mm x 5mm. (Size and shape varies due to the nature of stone) - Chain length: 40.5cm (16”) - Delicate 14K gold: 0.9mm curb chain / Thin barely-there chain. - Material: All 14k solid gold purchased in the USA. - Please note gemstones are slightly different in color shape, and size since all are natural. Some have naturally occurring inclusions or imperfections.