Profound Black 3mm Round Coin Opal

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1 x Black 3mm Round Coin Opal,Compatible with COE 33 / borosilicate glass

Our 3mm coin opals are are flat & polished on both sides and flat & polished along the edges. These stones are perfect for those tiny spaces--iris of the eye, headlight of a car, planet off in the distance... You name it, these great little stones will fit the bill.