5mm Black Round Coin Opal with Red Fire

5mm black round coin opals with red fire. These opals are flat and polished on both sides with a rounded edge.

All opals sold at Lampwork Supply are lab created using the Gilson Opal technique and are compatible with borosilicate glass.

To minimize handling and offer the best price these opals come in bags of five. You must order in quantities that are divisible by 5 or you will get an error.