matched pair is cut from blue and a little yellow pietersite from China.  It was hand cut in my cutting shop.  The polish is good the edges are cut for setting the stone in a bezel and the bottoms are flat. 

SIZE:(in millimeters) 25 x 12 x 2 MM THICK EACH STONE.
WEIGHT(Carats): 15.5 TOTAL WEIGHT OF BOTH STONES. 
DOME: SLIGHTLY DOMED.
BOTTOM: FLAT.  
EDGE:  GOOD FOR BEZEL 
POLISH:  GOOD.