Add a bold finishing touch of fire and color with our versatile 8mm Lab-Grown Opal Rondelles. Often called spacer beads or knot covers, these substantial, 'donut-shaped' beads are a jewelry maker's essential. The extra-large 3mm hole is expertly designed to conceal larger knots for a clean, professional finish, while their brilliant opal fire makes them stunning enough to be a focal point. Available in over 25 of our most popular colors, you can find the perfect match to complement any design, from chunky bracelets to bold necklaces.
Product Specifications
| Material | Lab-Grown Opal (80% Silica, 20% Polymer) |
|---|---|
| Color | Over 25 options available |
| Shape | Rondelle / Spacer Bead |
| Diameter | 8mm |
| Thickness | 5mm |
| Hole Size | 3mm (Center Drilled) |
| Quantity | Sold by the Individual Rondelle |
| Hardness | 4 on the Mohs scale |
| Heat Resistance | Up to 250°F / 120°C |
Why Choose Our Opal Rondelles?
- The Perfect Finish: With an extra-large 3mm hole, these rondelles are specifically designed to slide over and conceal bulky knots in thicker cords, giving your handmade jewelry a seamless, professional look.
- Brilliant Spacer Beads: Elevate your designs by using these substantial rondelles as spacers between larger beads. The brilliant 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—from the fiery passion of Black Fire to the delicate elegance of Pearl White—you're sure to find the perfect shade for any project.
- Unmatched Stability: Like all our opals, 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 projects using thicker stringing materials like leather cord, paracord, or multi-strand necklaces.
- Spacer Beads: Use them between large-hole pearls, gemstone beads, or metal components in bold bracelets and necklaces to add spacing and a vibrant flash of opal fire.
- Bold Focal Points: String a single rondelle on a thick cord or chain for a striking minimalist necklace or create a pair of statement earrings.
- Macrame & Fiber Arts: The extra-large hole makes them perfect for incorporating into macrame plant hangers, wall art, and other heavy-duty fiber projects.
Please Note: Our lab-created opals can withstand heat up to approximately 250°F. Due to their unique composition, every rondelle is unique and color may vary. Please see our individual product pages for more detailed photos of each color.