Closeout No Opalescence Australian 25mm x 18mm Oval Boulder Opal NotFreeShipEligable The manufacturer advises replacing the

The manufacturer advises replacing the included components once a year or every 2

075A – Divider German

4-prong round solitaire head designed for a 5 mm center stone

Converts USA standard key tip flex shafts to accept European standard slip joint handpieces

incidental

Closeout No Opalescence Australian 25mm x 18mm Oval Boulder Opal NotFreeShipEligable The manufacturer advises replacing theBoulder Opal is found exclusively in Queensland, Australia, where veins and patches of precious opal form within rugged brown ironstone boulders. This gem developed over millions of years as rainwater dissolved silica from the earth's surface and deposited it into natural cavities within the ironstone. The result is a stone of exceptional durability the ironstone backing provides natural reinforcement that makes Boulder Opal more resistant to cracks