Start with highlight, shadow, and one color family
The simplest way to color gemstones with colored pencils is to plan three zones before you start: a tiny highlight, a dark edge, and a midtone body color. The gem looks shiny when the lightest area and darkest area sit close enough to create contrast. If you color the whole shape evenly, it reads as a flat bead instead of a jewel.
This tutorial was source-checked on July 30, 2026. It is a practical coloring method, not evidence from a photographed hands-on test page. Use it as a repeatable technique and test pressure on your paper first.
What you need
- Three colored pencils in one hue family: light, middle, and dark.
- A white or very pale pencil if you want to soften the center.
- A sharp point for edges and tiny facets.
- A scrap or low-risk area for pressure testing.
- Optional: a colorless blender only if you already know how it behaves on the paper.
Crayola's official colored-pencil technique guidance notes that a sharpened point helps with small spaces and outlining, while a rounded point can help smooth blending. It also describes burnishing as heavy pressure used to create a smooth, shiny surface. That is useful for gemstones, but only at the end.
Step 1: Choose the highlight before coloring
Pick one small area to stay white or nearly white. On a round gem, place the highlight slightly off center. On a cut gemstone, reserve a small triangle, strip, or facet. On a crystal, save one long edge or point.
Do not color over the highlight early and hope to erase it cleanly later. Many coloring book papers and colored-pencil formulas do not erase back to pure white after heavy pressure.
Step 2: Map the darkest edge
Choose the edge farthest from your imagined light source and add the darkest color with light pressure. For a ruby, this might be deep red or burgundy. For an emerald, use dark green or blue-green. For a sapphire, use navy or indigo. Keep the first layer thin. You can always deepen it.
For faceted gems, put dark color into alternating facets instead of shading the whole outline equally. A gem looks more cut when neighboring facets have different values.
Step 3: Add the middle color
Use the middle pencil to bridge the dark edge toward the highlight. Work in small circular strokes or short directional strokes that follow the gem shape. Keep pressure light enough that the paper still accepts more layers.
If the page has printed facet lines, respect them. Let some facets stay lighter and some darker. If the page is a simple oval or circle, create your own value shift: dark edge, middle body, pale area near the highlight.
Step 4: Add the light color near the highlight
Use the lightest pencil around the highlight, leaving a small white spot or line untouched. This pale layer can overlap the middle color slightly. If the transition looks too sudden, use the light pencil to soften the edge of the midtone rather than covering the whole gem.
This is where many beginners overblend. A gemstone needs hard contrast. Do not smooth away every edge.
Step 5: Deepen the contrast
Return to the darkest pencil and reinforce the far edge, one corner, or every other facet. Add a cast shadow if the gemstone sits on a table, crown, shell, or treasure pile. Crayola's guidance describes highlights, midtones, shape shadows, and cast shadows as part of making a shape read as three-dimensional. For a coloring book gem, a tiny cast shadow can make the jewel look placed on the page rather than floating.
Keep the darkest accents small. If half the gem becomes dark, it may read as dull instead of shiny.
Step 6: Burnish only when the layers are right
Burnishing means using heavier pressure to smooth the surface. It can make a gemstone look polished, but it also compresses the paper surface and makes later changes harder. Save it for the final pass.
Use a light pencil, white pencil, or the lightest version of your hue to burnish the bright side. Use the middle pencil to smooth the transition area. Avoid burnishing the darkest edge with white unless you want to dull the color.
Easy color recipes
| Gem look | Light pencil | Middle pencil | Dark pencil | Extra note |
|---|---|---|---|---|
| Ruby | pink | red | burgundy | Keep a crisp white highlight. |
| Emerald | pale mint | green | deep green or blue-green | Add dark corners to make facets clearer. |
| Sapphire | pale blue | cobalt | navy or indigo | Leave more white than you think. |
| Amethyst | lavender | violet | plum | A tiny pink layer can warm the center. |
| Citrine | pale yellow | golden yellow | ochre or brown | Keep shadows warm, not gray. |
| Diamond | pale blue or gray | light gray | cool gray | Let the paper white do most of the work. |
How to handle crystals
Crystals are usually longer and more angular than round gems. Treat each plane as its own mini shape. Leave one edge pale, darken the opposite edge, and add thin lines along cracks or overlaps. For transparent crystals, use less color overall. Too much saturated color can make a crystal look like a solid stone.
Fantasy coloring books often include crystals, crowns, treasure, tiny bottles, and magical objects. Penguin Random House describes Magical Worlds by Johanna Basford as a book of faraway lands, enchanted castles, and inky realms, with subjects such as underwater cities, tiny cottages, and tree houses. That kind of fantasy page often benefits from small high-contrast shiny accents, even when the broader scene uses softer pencil layers.
Common mistakes
- Coloring the entire gemstone one flat color.
- Making the highlight too large and soft.
- Pressing hard in the first layer.
- Using black too early instead of a darker version of the gem color.
- Blending until every facet edge disappears.
- Adding gel pen before the pencil layers are finished.
- Using wet media on untested paper.
Bottom line
A colored-pencil gemstone needs contrast more than complexity. Reserve a highlight, place a small dark edge, build a middle color, and burnish only after the values work. The result will read as shiny even in a small coloring book space.
Sources
- Crayola, "Colored Pencil Tips & Techniques" by Claudia Nice, checked July 30, 2026: crayola.com
- Faber-Castell, "Basic techniques with Goldfaber," checked July 30, 2026: faber-castell.com
- Penguin Random House, "Magical Worlds" by Johanna Basford, checked July 30, 2026: penguinrandomhouse.com
- Coloring Book Hub prior article library, checked July 30, 2026.