an emerald brooch

Object 'emerald brooch' is type armor, material emerald.
Extra flags: magic burnproof socketable.
Weight is 2, value is 5430, level is 24.
Armor class is 4 pierce, 4 bash, 4 slash, and 8 vs. magic.
Can be socketed.
Affects ac by -10.
Affects hitroll by 1.
Affects damroll by 1.