Cabochon or Faceted? Choosing the Right Cut for Your Jewellery
It is the first question we ask a designer who comes to us for a stone: faceted or cabochon? The answer shapes everything that follows, from how the piece catches the light to how it is set and how well it survives everyday wear. Neither cut is better. Each one suits different stones, different designs and different lives.
What is the difference?
A faceted stone is cut with flat, polished surfaces arranged at precise angles. Light enters through the top, reflects off the facets underneath and returns to the eye as brilliance and sparkle.
A cabochon has a smooth, rounded dome and usually a flat or slightly curved back. Instead of sparkle, it offers depth, glow and a soft, tactile surface. It is the oldest way of shaping gemstones, and for some stones it remains by far the best.
Let the stone decide
The material itself is the best guide.
Choose faceted for transparent stones
Clear, transparent material such as sapphire, aquamarine, tourmaline, peridot, amethyst or diamond comes alive when faceted. Facets multiply the light, so a transparent stone with good colour will almost always look its best this way.
Choose cabochon for translucent and opaque stones
Turquoise, agate, onyx, lapis and similar stones have nothing for light to travel through, so facets would add little. A polished dome shows off their colour and pattern instead.
Choose cabochon for optical effects
Some of the most beautiful effects in gemstones only appear under a dome:
- Adularescence, the floating blue sheen of moonstone
- Play of colour in opal
- Chatoyancy, the cat’s-eye line in stones such as chrysoberyl
- Asterism, the six-rayed star in star sapphire and star ruby
Choose cabochon for included material
Facets act like mirrors and can magnify inclusions. Stones with visible inclusions, such as many emeralds and pink tourmalines, often look richer and calmer as cabochons, where the inclusions become part of the stone’s character.
Durability: think about how the piece will be worn
Cabochons have no sharp edges or points, which makes them very forgiving in rings and bracelets that take knocks every day. Faceted stones, especially shapes with points such as pear, marquise and trillion, have vulnerable tips that can chip. They are best protected with V-shaped prongs or a bezel, or used in earrings and pendants that see less contact.
Setting: what your jeweller needs to know
Faceted stones have a pointed underside, called the pavilion, so the setting needs enough depth to hold it. Claws and prongs let the most light in, while a bezel protects the edge.
Cabochons sit comfortably in bezels, rub-over settings and claw settings. Most have a flat back, which makes them ideal for low-profile designs and for glue-in findings used in bead and wire work.
If you plan to use ready-made settings, choose calibrated stones in standard sizes such as 6 × 4 mm, 7 × 5 mm or 8 × 6 mm. We list exact measurements for every stone so you can check the fit before you order.
What to look for when buying
In a cabochon
- Dome height: low domes are elegant and sit close to the setting; high domes show more depth and are better for optical effects.
- Symmetry: the outline should be even and the dome centred.
- Polish: the surface should be smooth and glassy, without flat spots or dull patches.
- Base: a flat base is easiest to set; a domed base needs a deeper setting.
In a faceted stone
- Windowing: a washed-out, see-through area in the centre means the stone was cut too shallow.
- Extinction: some dark areas are normal, but large black patches dull the stone.
- Symmetry and outline: the shape should be even, without lopsided corners.
- Girdle: check the edge for chips, especially on older or loose parcels.
A quick guide
| If your design is… | Consider… |
|---|---|
| An everyday ring or bracelet | Cabochon, or a faceted stone in a protective bezel |
| Earrings or a pendant with maximum sparkle | Faceted |
| A stone with a sheen, star or play of colour | Cabochon |
| Beadwork, wire work or glue-in findings | Flat-backed cabochon |
| A clean, transparent stone with strong colour | Faceted |
Our advice
When you are unsure, hold both in your mind’s eye on the finished piece: sparkle that catches across a room, or a quiet glow that invites a closer look. Both are beautiful. The right one is the one that suits the stone and the person who will wear it.
Explore our cabochons and loose faceted gemstones, or ask us to help you match stones for a specific design.