Pizzazz! That's what genuine, gleaming onyx will add to jewelry designs. Such beauty costs a little more, and in this case, it's worth it. This material is highly-polished striped onyx, dyed black in color. As the dye is accepted differently throughout the stone, periodic banding may still be displayed. Testing for colorfastness is recommended.
Beads>Grade B>OnyxBeadsGrade BOnyxBlacksTriangle10mmDyedhttp://www.firemountaingems.com/itemdetails/h203228gsH203228GSBead, black onyx (dyed), 10.5x10.5x10.5mm triangle, B grade, Mohs hardness 6-1/2 to 7. Sold per 16-inch strand.//image4.fmgstatic.com/images/p3228gsb.jpg20.0920.09As Low As $10.25 per strand