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Home » CROCHET GRANNY DIAMOND BLANKET | FREE PATTERN

CROCHET GRANNY DIAMOND BLANKET | FREE PATTERN

September 29, 2025 by toyslabcreations

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What I love about the crochet granny diamond blanket is the ‘X’ at the center that splits the whole blanket into four triangle with the granny diamond stitch looking like a pyramid. The crochet granny diamond blanket looks great in all colour combinations. The Crochet Granny Diamond Sweater is no exemption.

DESIGN

The crochet granny diamond blanket starts at the center and works in the round gaining length on all sides with each round. The color change on each round helps achieve the granny diamond stitch which gives this blanket a beautiful look.

CUTE

This super adorable crochet granny diamond blanket is so cute, it’s sure to make your home colorful, just use complement colors that come together.

MAKE IT YOUR OWN

This crochet granny diamond blanket is made with Dk weight yarn and measures 40.5*40.5 inches. Your can use any yarn weight of your choice and make it to your prefer measurement

Simple granny square blanket free pattern

YARN

I used Dk weight yarn in three complementary color for this crochet granny square blanket. You can make yours in the same fashion with your preferred colors. I’m sure it will turn out beautiful and colorful.

SIZE

The crochet granny diamond blanket is made in just one size 40.5*40.5. You can however make yours in your preferred size.

Read on to find the free crochet granny diamond blanket pattern below or find the ad-free printable PDF version on Ravelry, Love Crafts, Ko-fi and Etsy.

If you prefer to work with UK terms please scroll further down the page to view the UK version

PDF PATTERN

If you prefer to work offline or if you would like to support my work, purchase the ad-free printable pdf version, including all photo tutorials on Ravelry, Love Crafts, Ko-fi and Etsy.

Purchase the Ad-Free PDF below

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GRANNY DIAMOND CROCHET SWEATER PATTERN

CROCHET GRANNY DIAMOND BLANKET | FREE PATTERN

Size

40.5*40.5 inches

Materials:

4.0 mm crochet hook

DK weight yarn – 760g

Color A = 250g

Color B = 250g

Color C = 260g

Stitch marker

Yarn needle

Difficulty:

Advanced Beginner

Gauge:

14 Dc stitches/10 Granny Stitch rows = 10 cm/4 inches

Stitch Guide (US Version)

Ch: Chain

Sc: Single Crochet

Slst: Slip stitch

Dc: Double Crochet

Pattern Notes

  • Ch 1 at the beginning of the round does not count as a stitch.
  • Ch 3 at the beginning of the round counts as a stitch.
  • Weave in your ends as you go to make the wrong side neater.
  • The Ch 1 spaces are the corners.
  • Leave a moderately long tail at the end of the even rounds, to use on the next round, (join yarn along the way if the tail isn’t long enough to finish the next round)

Pattern Instructions

With Color A

Make a magic circle,

Round 1: Ch 3, mark the 3rd chain, 2 Dc, Ch1, 3 Dc, Ch 1 repeat two more times. Slst to the top of the starting Ch 3. Close the magic circle. (Color A only)

Round 2: Slst to the next Ch 1 space, Ch 3, mark the 3rd chain, (2 Dc, Ch 1, 3 Dc), all in the Ch 1 space, (3 Dc, Ch 1, 3 Dc), in the next Ch 1 space repeat two more times. Slst to the top of the starting Ch 3. Ch 1 and cut yarn. Leave a long tail. (Carry the yarn along to use on the next round) (Color A only)

With Color B

Round 3: Attach Color B in the next Ch 1 space with a slst, in the Ch 1 space, Ch 3, mark the 3rd chain, (2 Dc, Ch 1, 3 Dc), finish the last Dc with a slst of Color A. Make 3 Dc in the next space, finish the last Dc with a slst of Color B, in the Ch 1 space, (3 Dc, Ch 1, 3 Dc), finish the last Dc with a slst of Color A. Make 3 Dc in the next space, finish the last Dc with a slst of Color B repeat two more times. Slst to the top of the starting Ch 3. Ch 1 and cut Color A. (Colors B and A)

Round 4: With Color B, Slst to the next Ch 1 space, Ch 3, mark the 3rd chain, (2 Dc, Ch 1, 3 Dc), all in the Ch 1 space, 3 Dc in each space until the next corner, (3 Dc, Ch 1, 3 Dc), in the next Ch 1 space, 3 Dc in each space until the next corner repeat two more times. Slst to the top of the starting Ch 3. Ch 1 and cut yarn. Leave a long tail. (Carry the yarn along to use on the next round) (Color B only)

Round 5: Attach Color C in the next Ch 1 space with a slst, in the Ch 1 space, Ch 3, mark the 3rd chain, (2 Dc, Ch 1, 3 Dc), finish the last Dc with a slst of Color B. Make 3 Dc in the next space, finish the last Dc with a slst of Color C, make 3 Dc in the next space, finish the last Dc with a slip stitch of Color B, make 3 Dc in the next space, finish the last Dc with a slip stitch of Color C, *in the Ch 1 space,(3 Dc, Ch 1, 3 Dc), finish the last Dc with a slst of Color B. Make 3 Dc in the next space, finish the last Dc with a slst of Color C, make 3 Dc in the next space, finish the last Dc with a slip stitch of Color B, make 3 Dc in the next space, finish the last Dc with a slip stitch of Color C, *repeat two more times. Slst to the top of the starting Ch 3. Ch 1 and cut Color B. (Colors C and B)

Round 6: With Color C, Slst to the next Ch 1 space, Ch 3, mark the 3rd chain, (2 Dc, Ch 1, 3 Dc), all in the Ch 1 space, 3 Dc in each space until the next corner, (3 Dc, Ch 1, 3 Dc), in the next Ch 1 space, 3 Dc in each space until the next corner repeat two more times. Slst to the top of the starting Ch 3. Ch 1 and cut yarn. Leave a long tail. (Carry the yarn along to use on the next round) (Color C only)

Round 7: Attach Color A in the next Ch 1 space with a slst, in the Ch 1 space, Ch 3, mark the 3rd chain,(2 Dc, Ch 1, 3 Dc), finish the last Dc with a slst of Color C. Make 3 Dc in the next space, finish the last Dc with a slst of Color A,* make 3 Dc in the next space, finish the last Dc with a slip stitch of Color C, make 3 Dc in the next space, finish the last Dc with a slip stitch of Color A,* repeat till next corner, *in the Ch 1 space, (3 Dc, Ch 1, 3 Dc), finish the last Dc with a slst of Color C. Keep alternating Colors on the sides, All corners are Color A. Finish the last Dc with a slst of Color A, Slst to the top of the starting Ch 3. Ch 1 and cut Color C. (Colors A and C)

Round 8: With Color A, Slst to the next Ch 1 space, Ch 3, mark the 3rd chain, (2 Dc, Ch 1, 3 Dc), all in the Ch 1 space, 3 Dc in each space until the next corner, (3 Dc, Ch 1, 3 Dc), in the next Ch 1 space, 3 Dc in each space until the next corner repeat two more times. Slst to the top of the starting Ch 3. Ch 1 and cut yarn. Leave a long tail. (Carry the yarn along to use on the next round) (Color A only)

Round 9: Attach Color B in the next Ch 1 space with a slst, in the Ch 1 space, Ch 3, mark the 3rd chain, (2 Dc, Ch 1, 3 Dc), finish the last Dc with a slst of Color A. Make 3 Dc in the next space, finish the last Dc with a slst of Color B,* make 3 Dc in the next space, finish the last Dc with a slip stitch of Color A, make 3 Dc in the next space, finish the last Dc with a slip stitch of Color B,* repeat till next corner, *in the Ch 1 space, (3 Dc, Ch 1, 3 Dc), finish the last Dc with a slst of Color A. Keep alternating Colors on the sides, All corners are Color B. Finish the last Dc with a slst of Color B, Slst to the top of the starting Ch 3. Ch 1 and cut Color A. (Colors B and A)

Round 10: With Color B, Slst to the next Ch 1 space, Ch 3, mark the 3rd chain, (2 Dc, Ch 1, 3 Dc), all in the Ch 1 space, 3 Dc in each space until the next corner, (3 Dc, Ch 1, 3 Dc), in the next Ch 1 space, 3 Dc in each space until the next corner repeat two more times. Slst to the top of the starting Ch 3. Ch 1 and cut yarn. Leave a long tail. (Carry the yarn along to use on the next round) (Color B only)

Round 11: Attach Color C in the next Ch 1 space with a slst, in the Ch 1 space, Ch 3, mark the 3rd chain, (2 Dc, Ch 1, 3 Dc), finish the last Dc with a slst of Color B. Make 3 Dc in the next space, finish the last Dc with a slst of Color C,* make 3 Dc in the next space, finish the last Dc with a slip stitch of Color B, make 3 Dc in the next space, finish the last Dc with a slip stitch of Color C,* repeat till next corner, *in the Ch 1 space, (3 Dc, Ch 1, 3 Dc), finish the last Dc with a slst of Color B. Keep alternating Colors on the sides, All corners are Color C. Finish the last Dc with a slst of Color C, Slst to the top of the starting Ch 3. Ch 1 and cut Color A. (Colors C and B)

Rounds 12-50: Repeat rounds 6 – 11

Finishing rounds

Round 51: With Color B, attach your yarn with a slst in the first stitch from previous round, Ch 1, Sc in the first stitch, Sc in the next 2 stitches, in the Ch 1 space, make (1 Sc , Ch 1, 1 Sc), then 1 Sc in each stitch, until the next Ch 1 space, *make (1 Sc , Ch 1, 1 Sc), in the Ch 1 space, then 1 Sc in each stitch *. Slst to the first stitch of the round.

Round 52: With Color C, attach your yarn with a slst in the first stitch from previous round, Ch 1, Sc in the first stitch, Sc in the next 2 stitches,* in the Ch 1 space, make 3 Sc, then 1 Sc in each stitch until the next Ch 1 space, make 3 Sc in the Ch 1 space, then 1 Sc in each stitch. Slst to the first stitch of the round.

Finishing

Weave in all ends

Block your blanket

Finished Project

Granny square blanket free pattern

CROCHET GRANNY DIAMOND BLANKET | FREE PATTERN

Size

40.5*40.5 inches

Materials:

4.0 mm crochet hook

DK weight yarn – 760g

Colour A = 250g

Colour B = 250g

Colour C = 260g

Stitch marker

Yarn needle

Difficulty:

Advanced Beginner

Gauge:

14 Tr stitches/10 Granny Stitch rows = 10 cm/4 inches

Stitch Guide (UK Version)

Ch: Chain

Dc: Double Crochet

Slst: Slip stitch

Tr: Treble Crochet

Pattern Notes

  • Ch 1 at the beginning of the round does not count as a stitch.
  • Ch 3 at the beginning of the round counts as a stitch.
  • Weave in your ends as you go to make the wrong side neater.
  • The Ch 1 spaces are the corners.
  • Leave a moderately long tail at the end of the even rounds, to use on the next round, (join yarn along the way if the tail isn’t long enough to finish the next round)

Pattern Instructions

With Colour A

Make a magic circle,

Round 1: Ch 3, mark the 3rd chain, 2 Tr, Ch1, 3 Tr, Ch 1 repeat two more times. Slst to the top of the starting Ch 3. Close the magic circle. (Colour A only)

Round 2: Slst to the next Ch 1 space, Ch 3, mark the 3rd chain, (2 Tr, Ch 1, 3 Tr), all in the Ch 1 space, (3 Tr, Ch 1, 3 Tr), in the next Ch 1 space repeat two more times. Slst to the top of the starting Ch 3. Ch 1 and cut yarn. Leave a long tail. (Carry the yarn along to use on the next round) (Colour A only)

With Colour B

Round 3: Attach Colour B in the next Ch 1 space with a slst, in the Ch 1 space, Ch 3, mark the 3rd chain, (2 Tr, Ch 1, 3 Tr), finish the last Tr with a slst of Colour A. Make 3 Tr in the next space, finish the last Tr with a slst of Colour B, in the Ch 1 space, (3 Tr, Ch 1, 3 Tr), finish the last Tr with a slst of Colour A. Make 3 Tr in the next space, finish the last Tr with a slst of Colour B repeat two more times. Slst to the top of the starting Ch 3. Ch 1 and cut Colour A. (Colours B and A)

Round 4: With Colour B, Slst to the next Ch 1 space, Ch 3, mark the 3rd chain, (2 Tr, Ch 1, 3 Tr), all in the Ch 1 space, 3 Tr in each space until the next corner, (3 Tr, Ch 1, 3 Tr), in the next Ch 1 space, 3 Tr in each space until the next corner repeat two more times. Slst to the top of the starting Ch 3. Ch 1 and cut yarn. Leave a long tail. (Carry the yarn along to use on the next round) (Colour B only)

Round 5: Attach Colour C in the next Ch 1 space with a slst, in the Ch 1 space, Ch 3, mark the 3rd chain, (2 Tr, Ch 1, 3 Tr), finish the last Tr with a slst of Colour B.

Make 3 Tr in the next space, finish the last Tr with a slst of Colour C, make 3 Tr in the next space, finish the last Tr with a slip stitch of Colour B, make 3 Tr in the next space, finish the last Tr with a slip stitch of Colour C, *in the Ch 1 space,(3 Tr, Ch 1, 3 Tr), finish the last Tr with a slst of Colour B. Make 3 Tr in the next space, finish the last Tr with a slst of Colour C, make 3 Tr in the next space, finish the last Tr with a slip stitch of Colour B, make 3 Tr in the next space, finish the last Tr with a slip stitch of Colour C, *repeat two more times. Slst to the top of the starting Ch 3. Ch 1 and cut Colour B. (Colours C and B)

Round 6: With Colour C, Slst to the next Ch 1 space, Ch 3, mark the 3rd chain, (2 Tr, Ch 1, 3 Tr), all in the Ch 1 space, 3 Tr in each space until the next corner, (3 Tr, Ch 1, 3 Tr), in the next Ch 1 space, 3 Tr in each space until the next corner repeat two more times. Slst to the top of the starting Ch 3. Ch 1 and cut yarn. Leave a long tail. (Carry the yarn along to use on the next round) (Colour C only)

Round 7: Attach Colour A in the next Ch 1 space with a slst, in the Ch 1 space, Ch 3, mark the 3rd chain,(2 Tr, Ch 1, 3 Tr), finish the last Tr with a slst of Colour C. Make 3 Tr in the next space, finish the last Tr with a slst of Colour A,* make 3 Tr in the next space, finish the last Tr with a slip stitch of Colour C, make 3 Tr in the next space, finish the last Tr with a slip stitch of Colour A,* repeat till next corner, *in the Ch 1 space, (3 Tr, Ch 1, 3 Tr), finish the last Tr with a slst of Colour C. Keep alternating Colours on the sides, All corners are Colour A. Finish the last Tr with a slst of Colour A, Slst to the top of the starting Ch 3. Ch 1 and cut Colour C. (Colours A and C)

Round 8: With Colour A, Slst to the next Ch 1 space, Ch 3, mark the 3rd chain, (2 Tr, Ch 1, 3 Tr), all in the Ch 1 space, 3 Tr in each space until the next corner, (3 Tr, Ch 1, 3 Tr), in the next Ch 1 space, 3 Tr in each space until the next corner repeat two more times. Slst to the top of the starting Ch 3. Ch 1 and cut yarn. Leave a long tail. (Carry the yarn along to use on the next round) (Colour A only)

Round 9: Attach Colour B in the next Ch 1 space with a slst, in the Ch 1 space, Ch 3, mark the 3rd chain, (2 Tr, Ch 1, 3 Tr), finish the last Tr with a slst of Colour A. Make 3 Tr in the next space, finish the last Tr with a slst of Colour B,* make 3 Tr in the next space, finish the last Tr with a slip stitch of Colour A, make 3 Tr in the next space, finish the last Tr with a slip stitch of Colour B,* repeat till next corner, *in the Ch 1 space, (3 Tr, Ch 1, 3 Tr), finish the last Tr with a slst of Colour A. Keep alternating Colours on the sides, All corners are Colour B. Finish the last Tr with a slst of Colour B, Slst to the top of the starting Ch 3. Ch 1 and cut Colour A. (Colours B and A)

Round 10: With Colour B, Slst to the next Ch 1 space, Ch 3, mark the 3rd chain, (2 Tr, Ch 1, 3 Tr), all in the Ch 1 space, 3 Tr in each space until the next corner, (3 Tr, Ch 1, 3 Tr), in the next Ch 1 space, 3 Tr in each space until the next corner repeat two more times. Slst to the top of the starting Ch 3. Ch 1 and cut yarn. Leave a long tail. (Carry the yarn along to use on the next round) (Colour B only)

Round 11: Attach Colour C in the next Ch 1 space with a slst, in the Ch 1 space, Ch 3, mark the 3rd chain, (2 Tr, Ch 1, 3 Tr), finish the last Tr with a slst of Colour B. Make 3 Tr in the next space, finish the last Tr with a slst of Colour C,* make 3 Tr in the next space, finish the last Tr with a slip stitch of Colour B, make 3 Tr in the next space, finish the last Tr with a slip stitch of Colour C,* repeat till next corner, *in the Ch 1 space, (3 Tr, Ch 1, 3 Tr), finish the last Tr with a slst of Colour B. Keep alternating Colours on the sides, All corners are Colour C. Finish the last Tr with a slst of Colour C, Slst to the top of the starting Ch 3. Ch 1 and cut Colour A. (Colours C and B)

Rounds 12-50: Repeat rounds 6 – 11

Finishing rounds

Round 51: With Colour B, attach your yarn with a slst in the first stitch from previous round, Ch 1, Dc in the first stitch, Dc in the next 2 stitches, in the Ch 1 space, make (1 Dc , Ch 1, 1 Dc), then 1 Dc in each stitch, until the next Ch 1 space, *make (1 Dc , Ch 1, 1 Dc), in the Ch 1 space, then 1 Dc in each stitch *. Slst to the first stitch of the round.

Round 52: With Colour C, attach your yarn with a slst in the first stitch from previous round, Ch 1, Dc in the first stitch, Dc in the next 2 stitches,* in the Ch 1 space, make 3 Dc, then 1 Dc in each stitch until the next Ch 1 space, make 3 Dc in the Ch 1 space, then 1 Dc in each stitch. Slst to the first stitch of the round.

Finishing

Weave in all ends

Block your blanket

Finished Project

Simple granny square blanket free pattern

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All patterns and pictures on this Website is a property of Toyslab Creations. Please do not reprint, publish or post my patterns in whole or in part. Please don’t use my photos to advertise if you use my patterns to make and sell finished items.

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