Serpentinite-magnetite 29.87 ct Sq Cabochon 4 different sizes z275

Serpentinite-magnetite 29.87 ct Sq Bag 4 different sizes z275

20.00 x 19.70 mm

16.80 x 16.80 mm

18.60 x 13.00 mm

16.80 x 12.50 mm