The handmade Argentium (935) silver pendant is 3/4 inch long, 1/2 inch wide and 1/8 inch thick and contains a 3.5 mm faceted grey spinel and a 2.4 mm (.06 ct) natural diamond. The pendant hangs from a sterling silver cable chain but would also be pretty with a 14K white gold chain (contact me if interested in this option). Gray spinel was recently added as an alternative birthstone for August (peridot is the traditional birthstone); spinel is the 22nd wedding anniversary gemstone. Please email me your chain length preference, any length from 16 to 20-inches are all appropriate for a pendant this size. One in stock and ready to ship or pick up. *Currently shipping within the U.S. only.