Mosaic Crochet Blanket Pattern (Geometric Design)

Materials and supplies

• Washable worsted cotton; use acrylic only for projects kept away from heat
• 4-5.5 mm hook
• Flexible tape measure
• Blocking pins and mats
• Yarn needle and sharp scissors
• Two high-contrast colors, one ball per working row

Crochet terms used

The instructions in Mosaic Crochet Blanket Pattern (Geometric Design) use US terms: ch (chain), sl st (slip stitch), sc (single crochet), hdc (half double crochet), dc (double crochet), inc (two stitches in one), and dec (decrease). Counts in parentheses show the stitches expected after that row or round.

Overlay mosaic diamond repeat

The pattern uses a multiple of 12 plus 3 stitches. At 16 sc per 10 cm, 147 stitches measure about 91.9 cm. Chain 148, sc in the second chain and every chain across for 147 stitches, then fasten off. Start every later row at the right edge and do not turn.

Eight-row chart

Work ordinary stitches as back-loop sc. An Mdc is a front-loop dc worked into the unused front loop two rows below; it replaces one current-row stitch, so skip the current stitch directly behind it. Each repeat below consumes and produces 12 stitch positions, followed by 3 plain edge stitches.

1. Row 1 A: Sc across. (147)
2. Row 2 B: Repeat 5 sc, Mdc, 5 sc, Mdc; end with 3 sc. (147)
3. Row 3 A: Repeat 4 sc, Mdc, sc, Mdc, 4 sc, Mdc; end with 3 sc. (147)
4. Row 4 B: Repeat 3 sc, Mdc, 3 sc, Mdc, 3 sc, Mdc; end with 3 sc. (147)
5. Row 5 A: Repeat 2 sc, Mdc, 5 sc, Mdc, 2 sc, Mdc; end with 3 sc. (147)
6. Row 6 B: Repeat 3 sc, Mdc, 3 sc, Mdc, 3 sc, Mdc; end with 3 sc. (147)
7. Row 7 A: Repeat 4 sc, Mdc, sc, Mdc, 4 sc, Mdc; end with 3 sc. (147)
8. Row 8 B: Repeat 5 sc, Mdc, 5 sc, Mdc; end with 3 sc. (147)

Repeat rows 1-8 to the target length. Enclose tails with a double border: work sc around the front, repeat around the back, then slip stitch corresponding border layers together. Swatch one 15-stitch section first and verify the diamond before starting the blanket.

Tips & troubleshooting

Count the skipped stitch behind each Mdc

A dropped double crochet replaces one current-row stitch. Skip that position directly behind it, or the blanket gains an unwanted stitch with every dropped stitch.

Track rows from the same edge

Fasten off at the end and return to the right edge for the next row. Keep a written row number beside the color sequence; turning the work reverses the placement assumed by these instructions.

Swatch the entire repeat before scaling up

Work all eight chart rows on the 15-stitch practice width, including the three edge stitches. Check the front and back after each row and confirm the repeat before committing to the 147-stitch blanket.

Frequently Asked Questions

Where does a dropped double crochet go?

Insert into the unused front loop two rows below, not the stitch immediately below the working row. Keep the stitch long enough to reach without pulling that lower row upward.

Can I use two similar colors?

You can, but the geometric motif may be hard to read. Compare the yarns together in daylight and use the complete repeat swatch to judge contrast before making the full blanket.

May I sell the finished item?

Small-scale sales of finished items from this pattern are allowed with credit to Mosaic Crochet Blanket Pattern (Geometric Design). Do not copy, sell, or republish the written instructions or site images.

Keep exploring

To build on Mosaic Crochet Blanket Pattern (Geometric Design), continue with Boho Crochet Plant Hanger Pattern, Boho Crochet Wall Hanging Pattern, Crochet Coasters and Table Decor Set. For a broader route through the site, use the Ultimate Free Crochet Pattern Library.