How to Choose the Right Cabochon for Your Jewelry Project
Whether you're a seasoned metalsmith or just starting out, choosing the right cabochon can feel overwhelming. There are hundreds of stone types, dozens of shapes, and a wide range of quality levels to consider. This guide breaks it all down so you can shop with confidence and pick the perfect stone for every project.
What Is a Cabochon?
A cabochon (or “cab”) is a gemstone that has been shaped and polished rather than faceted. Instead of the flat, angled cuts you see on diamonds or sapphires, cabochons have a smooth, domed top and a flat or slightly curved bottom. This cut is ideal for stones with interesting patterns, optical phenomena (like the shimmer of moonstone or the flash of labradorite), or inclusions that would be hidden by faceting.
Step 1: Consider Hardness
The Mohs hardness scale rates minerals from 1 (softest) to 10 (hardest). For jewelry that will be worn daily — rings especially — you want stones rated 7 or above. For pendants, earrings, and occasional-wear pieces, softer stones are perfectly fine with the right setting.
- Hard (7+): Quartz family (including Red Rutilated Quartz), moss agate, jasper — great for rings and everyday wear
- Medium (6–6.5): Labradorite, moonstone, turquoise — best in protective bezel settings
- Softer (5–6): Tibetan Turquoise, opal — ideal for pendants, earrings, and pieces that won’t take hard knocks
Step 2: Choose Your Shape
Cabochons come in many shapes, and the right one depends on your setting and design aesthetic:
- Oval — The most classic and versatile cabochon shape. Works in almost any setting style and is the easiest to find blanks for. Great for beginners.
- Round — Clean and symmetrical. Our Rainbow Fossil Coral Round Cabochons and Summer Sky Doublet Round Cabochons are perfect for simple bezel pendants.
- Teardrop — Elegant and directional. Our Rainbow Fossil Coral Teardrop Cabochons make stunning drop earrings and pendants.
- Hexagonal — Modern and geometric. Our Moss Agate Elongated Hexagonal Cabochons are a favorite for contemporary designs.
- Freeform — Irregular, organic shapes that give each piece a one-of-a-kind character. Great for wire wrapping.
- Novelty shapes — For something truly unique, our carved cabochons like Crystal Bat Cabochons, Death Moth Cabochons, and Skull Carving Cabochon with Horns add serious personality to any piece.
Step 3: Think About the Optical Effect
Some stones have special optical properties that make them particularly magical as cabochons:
- Adularescence (moonstone) — A soft, billowing glow that floats beneath the surface
- Labradorescence (labradorite) — A vivid, metallic color flash that shifts with the angle of light. Our hand-selected Labradorite Cabochons are individually photographed so you know exactly what you’re getting.
- Play-of-color (opal) — Spectral flashes of color caused by light diffraction
- Chatoyancy — A cat’s-eye effect seen in some quartz and tiger’s eye stones
- Pattern and inclusion — Stones like Tiffany Jasper, Larvikite, and Rainbow Fossil Coral are prized for their unique natural patterns
Step 4: Match the Stone to Your Setting Style
- Bezel setting — Works with almost any cabochon shape and hardness. The metal wraps around the stone’s edge, making it the most protective option. Ideal for softer stones like turquoise, moonstone, and opal.
- Prong setting — Best for harder stones (7+). Allows more light around the stone but leaves edges exposed.
- Wire wrapping — Very flexible and works with any shape, including freeform and drilled stones. Our Drilled Labradorite Cabochons are specifically designed for wire wrap and macramé applications.
- Glue-set / cold connection — Great for doublets and delicate stones. Our Summer Sky Doublets and Aurora Opal Hearts work beautifully this way.
Step 5: Consider Quality vs. Budget
You don’t always need top-grade stones — especially when you’re learning or experimenting. Second quality cabochons often have minor inclusions, slight color variations, or small surface marks that don’t affect their beauty in a finished piece. We offer second quality options for several of our most popular stones, including Tibetan Turquoise and Moonstone, so you can practice and create without breaking the bank.
Quick Reference: Stone Picker by Project Type
- First ring project: Red Rutilated Quartz, Moss Agate, Tiffany Jasper (hard, forgiving)
- Statement pendant: Labradorite, large Tibetan Turquoise, Rainbow Fossil Coral
- Earrings: Teardrop or round shapes in any stone; lighter weight is better
- Wire wrap pendant: Drilled Labradorite, freeform cabs, any interesting freeform shape
- Gothic / alternative jewelry: Crystal Bat, Death Moth, or Skull Carving cabochons
- Budget-friendly practice: Any second quality stone