15mm RGB Round Coin Opal

15mm RGB round coin opals are black opals that flash blue, green, red and yellow 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.