Pipe Boulder Opal Bead #29 Topaz though purple amethyst from Brazil

though purple amethyst from Brazil is commonly heat treated to create citrine

A Rainbow Australian Crystal Opal in Yellow Gold

length (smallest setting): 2

stone cut: marquee cut

While some stones can exhibit strong fluorescence

Pipe Boulder Opal Bead #29 Topaz though purple amethyst from BrazilA 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: 30. 13mm x 15. 08mm x 7. 99mm Stone Shape: Pear Shape Cabochon Brightness of Color: 1. 5 of 5 Approximate Surface Opal Content: 16% Predominant Colors: Purple Bead Weight: 3. 67 grams Drill Hole Size: 2. 3mm *All photos are of the front of the stone. About Opal: While many