Crochet Diamond Shell Baby Blanket

This textured shell stitch creates a lightweight fabric with beautiful diamond-shaped openings that add elegance without making the blanket too airy. The repeating fan motifs grow quickly, making it an enjoyable project for beginners ready to try a textured stitch while still producing a professional-looking baby blanket.

Crochet Diamond Shell Baby Blanket

Free Crochet Pattern

Skill Level: Easy – Intermediate

Finished Size
Approx. 30 x 36 inches (76 x 91 cm)
(Easily adjustable.)

Materials

  • 900-1200 yards DK or Sport weight baby yarn
  • 4.0 mm (G) crochet hook
  • Yarn needle
  • Scissors

Crochet Abbreviations (US Terms)

  • ch – chain
  • sl st – slip stitch
  • sc – single crochet
  • dc – double crochet
  • sk – skip
  • sp – space
  • st – stitch
  • rep – repeat

Pattern Notes

  • Blanket width is adjustable.
  • Chain any multiple of 8 + 5.
  • Turn after every row.
  • Ch-3 counts as first dc.

Foundation

Chain 133

(or any multiple of 8 + 5)

Row 1

Work 1 dc into the 5th chain from hook.

Work 1 dc into each remaining chain.

Turn.

Row 2

Ch 3.

Skip next 3 sts.

Work 7 dc into next stitch (shell).

Skip next 3 sts.

1 sc into next stitch.

Skip 3 sts.

Repeat across.

Finish with 2 dc in last stitch.

Turn.

Row 3

Ch 3.

Work 3 dc into first sc.

Sc into center of next shell.

Work 7 dc into next sc.

Repeat across.

Finish with 4 dc into last stitch.

Turn.

Row 4

Ch 1.

1 sc in first stitch.

Work shell into center of next shell.

Sc into center of following shell.

Repeat across.

Turn.

Repeat

Repeat Rows 3-4 until desired blanket length.

Simple Border

Round 1

Work one round of single crochet around entire blanket.

Make 3 sc in each corner.

Join.

Round 2

(Skip 2 sts, 5 dc in next st, skip 2 sts, sc)

Repeat around.

Fasten off.

Weave in ends.

The finished fabric is soft, breathable, and perfect for newborns, stroller blankets, baby showers, or nursery décor. Because the repeat is easy to memorize, it’s also a relaxing crochet project for evenings or travel. Shell stitch blankets have remained popular for generations because they combine classic beauty with modern texture and work beautifully in both solid colors and gentle ombré yarns.

Free Video Tutorial:

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