June Lt Amethyst Birthstone Handstamped Initial Charm Knit Heart Keychain. June Lt Amethyst Birthstone/Month handstamped Initial Charm Tiny Hand Wirewrapped Birthstone Dangle Cotton Knit Heart Keychain. Choose your Initial in the drop-down menu. Hand stamped and knit by me, only 3 of each month available. Measurements: Knit Heart: 2 1/2in at widest part Initial Charm: 10mm Birthstone Charm: 2mm.