Cut from natural black onyx rough, most of this material is dyed to assure uniform blackness. Extremely well cut and polished. Black onyx has traditionally been used to banish grief and enhance self-control.
Cabochons>Grade B>OnyxCabochonsGrade BOnyxBlacks20mmRound20mmhttp://www.firemountaingems.com/itemdetails/h201693cbH201693CBCabochon, black onyx (dyed), 20mm calibrated round, B grade, Mohs hardness 6-1/2 to 7. Sold per pkg of 2.//image1.fmgstatic.com/images/p1693cbb.jpg7.257.25As Low As $1.57 per cabochon