Pipe Boulder Opal Bead #31 Onyx stone measurements: 15

stone measurements: 15

5 to 4 on the Mohs hardness scale

Brightness allows play of color to be seen at a wide variety of viewing angles

The Setting: Custom Cast Prong and Pave Set Split Euro Shank Ring

Pipe Boulder Opal Bead #31 Onyx stone measurements: 15A Bit About The Piece: A hand cut, drilled Australian boulder opal bead. Details, details The Stone: Pipe Boulder Opal, solid Stone Origin: Queensland, Australia Stone Measurements: 26. 18mm x 21. 67mm x 9. 2mm Stone Shape: Triangular Cabochon Brightness of Color: 3 of 5 Approximate Surface Opal Content: 14% Predominant Colors: Purple and Blue Bead Weight: 5. 74 grams Drill Hole Size: 2. 9mm *All photos are of the front of the stone. About Opal: While