Use treble crochet stitches to establish the center section, paying attention to the direction of the increases. The goal is to create a neat triangular shape that corresponds to half of the full motif.
Row 1
Continue working along the row, increasing at the sides as indicated in the diagram.
Keep the shape narrow by following the placement of the increases carefully. If you’re using this piece alongside full diamonds, compare the shapes as you work to make sure they fit together as intended.
Continue according to the diagram until the half diamond reaches the required size.
3. Wide Half Diamond
The wide half diamond offers another option when a broader triangular section is needed. Like the narrow version, it can help you finish the edges of a larger project or create a different arrangement of geometric motifs.
Center Piece and Row 1
Begin with the center foundation shown in the wide half diamond diagram.
Work the treble crochet stitches and increase along the sides according to the pattern. The increases allow the section to grow wider as you progress.
Continue following the diagram, checking the shape occasionally to make sure the sides remain balanced. The exact placement of the increases is important here, particularly if you’re planning to combine this piece with other diamond motifs.
Keep working until you reach the size required for your project.
Tips for Getting the Best Results
A few small details can make a real difference when working with geometric crochet patterns.
Choose your yarn carefully. Smooth yarn makes it easier to see the stitch groups and chain spaces. For a blanket, a soft, washable yarn is often a practical choice.
Experiment with color. Two contrasting colors can make the diamond shapes stand out, while several coordinated shades create a more playful look. A single color is also a lovely option if you want the texture to take center stage.
Check your tension. Try to keep your stitches even throughout the motif. If your tension changes significantly between pieces, the diamonds may end up different sizes.
Use the diagrams as your guide. The written instructions explain the basic construction, while the diagrams show where the stitches, joining points, and increases belong. Refer to both as you work.
Make a test piece first. If you’re planning a large blanket or shawl, crochet one motif before committing to the full project. This gives you a chance to check the size, yarn choice, and overall appearance.
Ideas for Using Your Crochet Diamonds
Once you’ve made a few motifs, there are plenty of ways to use them.
- Diamond crochet blanket: Join several full diamonds together for a geometric throw with a distinctive handmade look.
- Crochet shawl: Arrange the motifs into a larger triangular or rectangular design, depending on the finished shape you want.
- Decorative cushion: Use diamond motifs to create a textured cushion cover that adds a handmade touch to your home.
- Colorful scarf: Alternate different shades to create a repeating pattern that stands out without requiring complicated stitches.
- Scrap-yarn project: Use leftover yarn in coordinating colors to give each diamond its own character.
You can keep the finished design simple or experiment with different arrangements until you find a combination you love.

Crochet diamond motif diagram
Crochet Diamond Pattern Video Tutorial
If you prefer watching the stitches come together, take a look at the video tutorial accompanying this pattern. Seeing the process can make it easier to understand how the motif develops and how the different sections fit together.
Follow along with the video and refer to the diagrams whenever you need a closer look at the stitch placement.
Final Thoughts
The crochet diamond pattern is a lovely reminder that simple stitches can create something really special. With treble crochet stitches, chain spaces, and carefully placed increases, you can build a geometric motif that works for everything from small decorative pieces to larger blankets and shawls.
Try the full diamond first, then experiment with the narrow and wide half diamonds to see how they can fit into your own designs. And don’t be afraid to play with color—sometimes a small change in yarn shade can give a familiar pattern a completely different look.
Have you tried this crochet diamond pattern? I’d love to hear what you’re making with it! Share your project or your favorite color combinations in the comments below.
Happy crocheting!
Free PDF Pattern
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