A Simple Lapidary Guide to the Art of Cutting & Shaping Stones
What Is a Cabochon?
When most people picture gemstones, they think of sparkling facets - little flat faces cut into a stone to make it glitter and catch the light. But not all gems are cut that way.
Some stones are shaped by highly skilled lapidaries (stone cutters) into something softer, smoother, and more natural. That style is called cabochon cutting, and it’s one of the oldest forms of lapidary art.
At GroveTop Studio, many of our hearts, puffs, teardrops, and polished stones are actually fully rounded (double-domed) cabochons - even if they aren’t the traditional oval shape. Here’s what that really means.
What Makes a Stone a Cabochon?
A cabochon (pronounced kab-uh-shon) is a gemstone that’s:
- smooth and polished, not faceted
- domed on top (and also on the bottom) - double domed
- shaped by hand or machine rather than cut into facets
This gives cabochons a warm, natural look. Instead of sparkling like a diamond, they gently glow, showing off the stone’s natural patterns, colors, and inclusions.
Hearts, teardrops, ovals, oblongs, and puffs can all be cabochon cuts as long as they keep that smooth, domed shape.
How Cabochons Are Made: The Lapidary Process
Cabochon cutting is surprisingly hands-on and artistic. Most stones go through a process similar to this:
1. Starting With Rough Stone
The lapidary begins with raw stone - sometimes a chunk, sometimes a flat slab cut from a larger piece.
2. Drawing the Shape
An aluminum or wax pencil is used to outline the desired shape - a heart, oval, teardrop, and more.
For heart-shaped stones like our puff hearts and Elderstones-style pieces, the lapidary literally draws the heart onto the slab before cutting.
3. Cutting the Outline
A diamond saw slices out the rough shape. At this stage, it looks a bit blocky or rough - more like a cutout than a smooth stone.
4. Shaping on Coarse Grinding Wheels
The stone is then taken to coarse grinding wheels to:
- round the outline
- define the curves
- start forming the dome on top
- smooth or bevel the edges
This is where the stone starts to look like an actual heart, teardrop, or oval instead of a rough cut piece.
5. Refining With Finer Grits
Next, the lapidary moves through a series of wheels or sanding belts:
- medium grit
- fine grit
- extra-fine grit
Each step removes the scratches from the one before it. By the end, the stone feels almost silky to the touch.
6. Final Polishing
The last stage uses very fine abrasives or polishing compounds to bring out the stone’s full sheen. This is what gives cabochons their soft, reflective, almost “wet” glow.
7. Optional: Back Doming
Traditional cabochons have a domed front and relatively flat back, but many modern lapidaries also slightly round the back of heart-shaped or puff stones to make them more comfortable to hold or display.
Why Cabochons Matter in Our Collection
Cabochon cuts celebrate the natural beauty of a stone rather than trying to force sparkle with facets. They are ideal for:
- heart stones
- worry stones and pocket stones
- altar or display pieces
- healing and energy work
- smooth jewelry components
Many of our hearts, puffs, and polished shapes fall into this cabochon family - shaped, smoothed, and rounded through a traditional lapidary process that brings out each stone’s unique character.
Here is a quick YouTube video, by a lapidary in California, that demonstrates the various stages of cutting and shaping.
