Black Fire Astral Opal™ Rondelle Beads

Add the perfect finishing touch of fire and color with our versatile 6mm & 8mm Lab-Grown Astral Opal™ Rondelles. Often called spacer beads or knot covers, these slim, 'donut-shaped' beads are a jewelry maker's essential. The large hole is expertly designed to conceal knots for a clean, professional finish, while their brilliant Astral Opal™ fire makes them stunning enough to be a focal point. Available in Black Fire, our best selling lab-created Astral Opal™ color. This spacer bead will complement any design, from vibrant charm bracelets to elegant necklaces. Product Specifications Material Lab-Grown Astral Opal™ (80% Silica, 20% Polymer) Color Primary: Black | Fire: Rainbow Shape Rondelle / Spacer Bead Diameter 6mm & 8mm (Selectable) Thickness 4mm & 5mm Hole Size 2mm & 3mm (Center Drilled) Quantity Sold by the Individual Rondelle Bead Hardness 4 on the Mohs scale Heat Resistance Up to 250°F / 120°C Why Choose Our Astral Opal™ Rondelles? The Perfect Finish: With a large hole, these rondelles are specifically designed to slide over and conceal knots, giving your handmade jewelry a seamless, professional look. Brilliant Spacer Beads: Elevate your designs by using these rondelles as spacers between larger beads. The brilliant Astral Opal™ fire adds a pop of luxury and color that complements any gemstone or material. Vast Color Selection: With over 25 colors to choose from, you're sure to find the perfect shade for any project. Our Black Fire Astral Opal™ is a rich black base with intense rainbow color-play that will level up your projects.  Unmatched Stability: Like all our Astral Opal™, these are guaranteed not to crack, craze, or yellow over time, ensuring your beautiful creations last a lifetime. Creative Applications Knot Covers: The ideal solution for finishing stretch bracelets and knotted necklaces with a clean, decorative touch. Spacer Beads: Use them between pearls, gemstone beads, or metal components in bracelets and necklaces to add spacing and a vibrant flash of Astral Opal™ fire. Dainty Focal Points: String a single rondelle on a delicate chain for a minimalist necklace or create a simple pair of elegant earrings. Macrame & Fiber Arts: The large hole makes them perfect for incorporating into macrame, leather, and other fiber-based craft projects. Please Note: Our lab-created Astral Opal™ can only withstand heat up to approximately 250°F and are not compatible with glass blowing or any high heat projects. Due to their unique composition, every rondelle is unique and color may vary.