A rainbow of colors are offered up by these little 5mm Ethiopian opal gemstone studs. Same size and hatched texture as my classic gemstone studs. Earrings measure 3/8” diameter. Sterling silver. Ready to ship.

Note: Some opals are porous and can absorb water if submerged or if they repeatedly become wet. This can cause the colored flash that you love to go dull. It’s best not to wear opals in the shower, when swimming etc. If stones become wet, dry as well as possible to avoid damaging the stones.