5mm black trillion opals with red fire. These opals are flat on one side and domed on the front with polished, rounded edges.
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.