Your choice of freeform Mexican opals, also called opal in matrix. Lots of color and fire. No exterior cracks.
Approximate sizes:
UPDATE: "C" AND "D" HAVE SOLD

A = 30 x 20 mm
B = 25 x 18 mm
C = 22 x 12 mm
D = 19 x 11 mm
E = 15.5 x 10.3 mm
F = 12 x 11 mm
Contact us to declare your choice.