Fireable opals in Pink with green fire set in dangle earrings with a snake pattern and scale texture. Made by Grainne Reynolds

Premium Lab-grown-Fireable Resin-Free Opal Cabochons

Resin-Free & Fireable — Kiln-Safe and heat resistant

Opals that genuinely flash. Explore our premium lab-grown Galaxy Opal® — 100% resin-free and fireable, making them the ideal choice for metal clay, glass work, and traditional silversmithing. Delivering the same vivid fire and play-of-colour as natural precious opal, at a fraction of the cost. Each stone is calibrated for consistency, eco-friendly by design, and available in a stunning range of colours.

  • 100% resin-free — safe to fire in a kiln and torch fire
  • Lab-grown but identical to natural opals 80% Silica 20% H20
  • Perfect for metal clay, glassblowing/lamp work and silversmithing projects
  • Calibrated for consistency — each stone is the same size
  • No cracking, crazing, or colour loss when fired