Solid 14K yellow, rose and white gold with real diamonds (0.1ct SI-H Natural Conflict free diamonds) You keepsakes will be filled into the 2 slits on the sides. (Breastmilk, cremation, wedding dress/tuxedo, wedding vows/ flowers etc!) If you dont see the size you need please send me a message and i will create a custom listing for you! Payment plans are available!