Squared Diamond Granny Throw – Free Crochet Pattern
The Squared Diamond Granny Throw combines the timeless look of traditional granny squares with a beautiful geometric diamond design. The finished blanket has a striking layered appearance, making it a wonderful project for cozy evenings, home décor, or a thoughtful handmade gift.
With its repeating granny-style clusters, customizable colors, and unique joining technique, this pattern gives you plenty of room to make the finished throw your own.
About the Squared Diamond Granny Throw
This throw is made by building granny-style squares and expanding them into larger diamond-like sections. The combination of color changes, textured ridges, and symmetrical shapes creates a distinctive finished design.
You can choose soft neutral colors for a subtle look or use bright, contrasting shades to make the diamond pattern stand out.
Although the finished design looks intricate, the basic construction relies on familiar granny-square techniques. Once you establish the first sections, the repeating pattern becomes easier to follow.
Why You’ll Love This Crochet Pattern
Classic granny-style crochet with a modern geometric design
Easy to customize with your favorite colors
Suitable for blankets, throws, gifts, and home décor
Uses familiar double crochet and single crochet stitches
Includes two joining options
Creates interesting texture on both sides
Flexible enough to adjust the size and color arrangement
Classic granny-style crochet with a modern geometric design
Easy to customize with your favorite colors
Suitable for blankets, throws, gifts, and home décor
Uses familiar double crochet and single crochet stitches
Includes two joining options
Creates interesting texture on both sides
Flexible enough to adjust the size and color arrangement
Materials You’ll Need
Yarn
If you are using five colors, plan for approximately five 7-ounce skeins, with one skein for each color.
The amount of yarn used will vary by color:
The outermost color will use nearly a full skein.
The innermost color will require approximately half a skein.
The remaining three colors will use amounts somewhere between these two.
The exact amount will depend on the size of your finished throw and your crochet tension.
Crochet Hook
A 5.50 mm (I) crochet hook was used for the original version.
However, the hook size can be changed depending on the size and purpose of your project.
For example:
G hook: Smaller squares for a crib blanket
H hook: A good option if you crochet loosely
I hook: The hook size used for the original version
J hook: Can work well with rug yarn
K hook: Suitable for bulky yarn and a larger floor throw
This pattern is fairly forgiving, so you do not need to worry about matching the original hook size exactly.
Granny Square Style & Helpful Tips
Granny Cluster Stitch
For this project, use traditional granny-style clusters made with:
3 double crochets (3DC)
There are no chains between the clusters, while the corners are formed with:
3DC, chain 3, 3DC
Turning Your Work
Turn your work at the end of each round or row.
Turning helps keep the squares even and symmetrical and can prevent the corners from becoming uneven.
If you prefer not to turn your work, you can cut and rejoin your yarn at the beginning of each round. However, turning is generally quicker and uses less yarn.
Keep an Even Number of Rounds
One important rule for this design is to work an even number of rounds.
Examples include:
4 rounds
6 rounds
8 rounds
10 rounds
12 rounds
Using an even number of rounds helps keep the squares symmetrical and makes the sections fit together properly.
The original version uses 10 rounds and 5 colors, with 2 rounds per color.
You can customize this by changing the number of colors or working one, two, or three rounds of each color.
How to Make the Squared Diamond Granny Throw
Part 1: Making the Inner Granny Square
Start With a Magic Circle
Begin by creating a magic circle.
Row 1
Chain 3. This counts as the first double crochet.
Work 2 double crochets into the magic circle.
Chain 3.
Work 3 double crochets into the circle.
Repeat the chain-3 and 3DC sequence three more times.
Chain 2.
Pull the magic circle closed.
Single crochet into the top of the beginning chain 3.
Chain 3 and turn your work.
Chain 3. This counts as the first double crochet.
Work 2 double crochets into the magic circle.
Chain 3.
Work 3 double crochets into the circle.
Repeat the chain-3 and 3DC sequence three more times.
Chain 2.
Pull the magic circle closed.
Single crochet into the top of the beginning chain 3.
Chain 3 and turn your work.
Row 2
Work 2 double crochets into the chain-2 space from the previous row.
In the next chain-3 space, work 3DC, chain 3, 3DC.
Repeat the corner sequence two more times.
Work 3 double crochets around the post of the single crochet from the previous row.
Chain 3.
Slip stitch into the top of the first chain 3.
Fasten off and turn your work.
Work 2 double crochets into the chain-2 space from the previous row.
In the next chain-3 space, work 3DC, chain 3, 3DC.
Repeat the corner sequence two more times.
Work 3 double crochets around the post of the single crochet from the previous row.
Chain 3.
Slip stitch into the top of the first chain 3.
Fasten off and turn your work.
Row 3
Change to a new color.
Slip stitch into any side space.
Chain 3, counting as the first double crochet.
Work 2 more double crochets into the same space.
In the next corner space, work 3DC, chain 3, 3DC.
Work 3DC in the next gap.
Work another corner set of 3DC, chain 3, 3DC.
Continue this pattern around the square.
Slip stitch into the top of the beginning chain 3.
Chain 3 and turn.
Row 4
Work 2DC in the same space.
Work 3DC in each following space.
In every corner chain-3 space, work 3DC, chain 3, 3DC.
Slip stitch to the top of the beginning chain 3.
Fasten off.
Work 2DC in the same space.
Work 3DC in each following space.
In every corner chain-3 space, work 3DC, chain 3, 3DC.
Slip stitch to the top of the beginning chain 3.
Fasten off.
Row 5
Change to the next color.
Slip stitch into any middle gap.
Chain 3.
Work 2DC into the same gap.
Work 3DC in each gap around the square.
In every corner chain-3 space, work 3DC, chain 3, 3DC.
Slip stitch to the top of the first chain 3.
Chain 3 and turn your work.
Row 6
Work 2DC into the same gap.
Work 3DC in every following gap.
Work a corner set of 3DC, chain 3, 3DC in every corner.
Slip stitch to the top of the beginning chain 3.
Fasten off and turn.
Work 2DC into the same gap.
Work 3DC in every following gap.
Work a corner set of 3DC, chain 3, 3DC in every corner.
Slip stitch to the top of the beginning chain 3.
Fasten off and turn.
Row 7
Change color.
Slip stitch into any middle gap.
Chain 3.
Work 2DC into the same gap.
Work 3DC in each remaining gap.
Create a corner set in every corner.
Slip stitch to the top of the beginning chain 3.
Chain 3 and turn.
Rows 8–10
Repeat the same granny-style construction used in Rows 6 and 7.
Continue changing colors according to your chosen color sequence.
Do not turn at the end of Row 10.
Finishing the Inner Square
Slip Stitch Edge
With the slip stitch on your hook and the front of the final row facing you:
Work a slip stitch through the front loop of each double crochet.
Work loosely through the chain stitches.
At the center of each side, chain 1.
Mark each center chain-1 space with a stitch marker.
Slip stitch to the first slip stitch.
Fasten off.
Keep the slip stitches loose enough that the square does not tighten or pucker.
Understanding the Stitch Count
How to Count Stitches Along Each Side
Each 3DC cluster counts as 3 stitches.
There are also 2 additional stitches at the corners, not including the stitch positioned in the center of the chain-3 space.
For example, if one side contains 10 clusters:
10 × 3 = 30 stitches
Add the 2 corner stitches:
30 + 2 = 32 stitches
So that side would contain 32 stitches.
The additional chain stitch placed in the center of the slip-stitch row is not counted as an independent stitch. It acts as a bridge between clusters and helps maintain symmetry.
Joining the Squares
There are two joining methods available for this project.
Two-Sided Joining Method
Look closely at the edge where you worked the slip-stitch round.
You will see two horizontal threads running behind the front and back loops.
One thread will appear slightly longer and more prominent, while the other will sit closer to your hook hand.
Use these two threads to join the sides of your squares.
This method creates a subtle raised ridge on both the front and back of the finished throw, giving the blanket additional texture.
At the corners, locate the two threads around the center of the marked chain-1 space. These provide an anchor for the corner connections and help keep the shape crisp.
One-Sided Joining Method
If you prefer a flatter appearance on the back of your work, use the one-sided joining method.
Along the edge, use:
One center thread
The back loop of each stitch
At the corners, use the two back threads from the center chain-1 space to anchor the corner clusters.
Helpful Tip
When working single crochets at the beginning or end of rows, treat them like chain-1 spaces.
Work around the post of the single crochet in the same way you would work around a regular chain space.
Building the Outer Sections
Getting Started
Locate the center chain-1 stitch that you marked earlier.
Move backward toward the hand holding your hook and insert the hook into the second stitch from the center.
This will be the edge of the center cluster on the hook side.
Using your center color:
Work 1 single crochet into the stitch.
Chain 1.
In the marked center stitch, work 3DC, chain 3, 3DC.
Chain 1.
Slip stitch into the second stitch on the opposite side of the center.
Chain 3.
Count two stitches outward from the slip stitch.
Work 1 single crochet into that stitch.
Turn your work.
This establishes the first section of the outer diamond.
Row 1
Looking at your work from the center outward:
Slip stitch into the 3rd double crochet of the first center cluster.
Chain 1.
In the marked chain-1 space, work 3DC, chain 3, 3DC.
Chain 1.
Slip stitch into the 3rd double crochet of the cluster on the opposite side.
Row 2
Chain 3.
Single crochet into the middle double crochet of the next cluster.
Turn your work.
In the chain-1 space, work 2DC.
In the corner chain-3 space, work 3DC, chain 3, 3DC.
Work 3DC into the next chain-1 space.
Single crochet into the middle double crochet of the next cluster.
Fasten off.
Turn your work.
Chain 3.
Single crochet into the middle double crochet of the next cluster.
Turn your work.
In the chain-1 space, work 2DC.
In the corner chain-3 space, work 3DC, chain 3, 3DC.
Work 3DC into the next chain-1 space.
Single crochet into the middle double crochet of the next cluster.
Fasten off.
Turn your work.
Row 3
Change to the next color.
Slip stitch into the first double crochet of the next cluster.
Chain 1.
Work 3DC into the single crochet space.
Work 3DC into the next gap.
Create the corner using the appropriate corner stitch pattern.
Work 3DC into the following gap.
Work another 3DC into the single crochet space.
Chain 1.
Slip stitch to the first double crochet of the next cluster.
Turn your work.
Row 4
Chain 3.
Single crochet into the last double crochet of the same cluster.
Turn your work.
Work 2DC into the chain-1 space.
Work 3DC into each of the next two gaps.
Create the corner with 3DC, chain 3, 3DC.
Work 3DC into the next two gaps.
Work 3DC into the chain-1 space.
Single crochet into the last double crochet of the same cluster.
Fasten off and turn.
Chain 3.
Single crochet into the last double crochet of the same cluster.
Turn your work.
Work 2DC into the chain-1 space.
Work 3DC into each of the next two gaps.
Create the corner with 3DC, chain 3, 3DC.
Work 3DC into the next two gaps.
Work 3DC into the chain-1 space.
Single crochet into the last double crochet of the same cluster.
Fasten off and turn.
Row 5
Change color.
Slip stitch to the middle double crochet of the next cluster.
Chain 1.
Work 3DC into the single crochet.
Work 3DC into each gap around.
At each corner, work 3DC, chain 3, 3DC.
Chain 1.
Slip stitch to the middle double crochet of the next cluster.
Row 6
Chain 3.
Single crochet into the first double crochet of the next cluster.
Turn your work.
Work 2DC into the chain-1 space.
Work 3DC into each of the next two gaps.
Create the corner with 3DC, chain 3, 3DC.
Work 3DC into the next two gaps.
Work 3DC into the chain-1 space.
Single crochet into the first double crochet of the next cluster.
Fasten off and turn.
Chain 3.
Single crochet into the first double crochet of the next cluster.
Turn your work.
Work 2DC into the chain-1 space.
Work 3DC into each of the next two gaps.
Create the corner with 3DC, chain 3, 3DC.
Work 3DC into the next two gaps.
Work 3DC into the chain-1 space.
Single crochet into the first double crochet of the next cluster.
Fasten off and turn.
Row 7
Change color and attach the new color to the last double crochet on the side.
Chain 1.
Work 3DC into each single crochet and gap around.
At each corner, work 3DC, chain 3, 3DC.
Continue working 3DC in every gap and single crochet.
Chain 1.
Slip stitch to the last double crochet of the side.
Chain 3.
Turn your work.
Row 8
Work 2DC into the chain-1 space.
Work 3DC in each gap along the row.
At each corner, work 3DC, chain 3, 3DC.
Continue working 3DC in each gap.
Finish with 3DC in the chain-1 space.
Pull out a long loop or secure it with a stitch marker.
Leave a 4–5 inch yarn tail.
Cut the yarn.
Turn your work.
Work 2DC into the chain-1 space.
Work 3DC in each gap along the row.
At each corner, work 3DC, chain 3, 3DC.
Continue working 3DC in each gap.
Finish with 3DC in the chain-1 space.
Pull out a long loop or secure it with a stitch marker.
Leave a 4–5 inch yarn tail.
Cut the yarn.
Turn your work.
Row 8 does not connect to the inner square.
Connecting the First Side
At the end of the first side section, keep the long loop available for later joining.
The outer sections use the following general rule:
Even rows: Begin and end with a single crochet.
Odd rows: Begin and end with a chain 1.
Connecting the Second, Third & Fourth Sections
Hold your work with the front facing you.
Move to the next side behind your hook hand. If you are right-handed, this will generally be the right side; if you are left-handed, it will generally be the left side.
Repeat Row 8 as before.
At the end of Row 8:
Chain 1.
Slip stitch into the 3rd chain of the previous section.
Undo the long loop from the first section.
Chain 1.
Slip stitch into the top of the chain 3 from the fourth section.
Turn your work so the back of Row 8 is facing you.
Continue this process around all four sides.
Finally, use the long tail from the first section to chain 1 and slip stitch to the final side, completing the edge.
Adding the Next Outer Square
Row 9
Position the center cluster over the corners.
Conceal the chain-1 space as you would when hiding a yarn tail.
Attach the cluster to the corner stitch in the lower color.
Instead of stitching around the corner in the usual granny-square manner, work behind the front loop and use the two middle loops.
Continue around the square.
Position the center cluster over the corners.
Conceal the chain-1 space as you would when hiding a yarn tail.
Attach the cluster to the corner stitch in the lower color.
Instead of stitching around the corner in the usual granny-square manner, work behind the front loop and use the two middle loops.
Continue around the square.
This technique leaves the stitch ridges visible on the inner diamond, creating a layered effect that makes the inner square appear to sit on top of the outer section.
You can choose any color for the outer square, although matching the inner square's color can create a more coordinated appearance.
For additional outer layers, repeat the same process.
Work the slip-stitch row through the front loops only, then use the inner loops of this row for the side connections.
Row 10
Chain 3 and turn your work.
Work 2DC into the same space.
Work 3DC in each space.
Work the corner set in every corner.
Slip stitch into the top of the beginning chain 3.
Do not turn.
Chain 3 and turn your work.
Work 2DC into the same space.
Work 3DC in each space.
Work the corner set in every corner.
Slip stitch into the top of the beginning chain 3.
Do not turn.
Slip Stitch Row
Slip stitch through the front loops of each double crochet and chain stitch.
Add an extra chain 1 at the center of each side.
Mark each center chain 1.
Slip stitch to the first slip stitch.
Fasten off.
Slip stitch through the front loops of each double crochet and chain stitch.
Add an extra chain 1 at the center of each side.
Mark each center chain 1.
Slip stitch to the first slip stitch.
Fasten off.
This completes the second square section.
Creating the Third Square
Rows 1–12
Repeat the same construction used for the earlier outer corner sections.
Continue through Row 12.
At the end of Row 12, fasten off.
Row 12 marks the end of the first color in the second round of color changes.
The row should begin and end around the middle double crochet of the second-to-last cluster on each side.
Row 13
Start by working a few clusters backward.
Introduce the second color with a slip stitch.
Chain 3.
Work toward the inner corner.
Chain 1.
Slip stitch into the last cluster at the inner corner.
Start by working a few clusters backward.
Introduce the second color with a slip stitch.
Chain 3.
Work toward the inner corner.
Chain 1.
Slip stitch into the last cluster at the inner corner.
Extra Joining Step
Turn your work so you can see the back of the slip stitch.
Slip stitch into the leg of the slip stitch.
Chain 2.
Chain 1.
Slip stitch into the first double crochet of the last cluster at the inner corner.
Chain 1.
Work 3DC into the single crochet gap.
Repeat this process at each inner corner.
Continue working clusters around the square and corner sets at each corner.
Finish by:
Chaining 1.
Slip stitching into the top of the beginning chain 3.
Chain 3.
Turn your work.
Row 14
Work 3DC into each gap along the row.
At every corner, work the corner set.
In the chain-1 space before the inner corner, work 3DC.
Skip the chain-2 space.
Chain 1.
Work 3DC into the next chain-1 space.
Continue this pattern around the square.
Chain 1.
Slip stitch into the 3rd chain of the beginning chain 3.
Cut and secure the yarn.
Work 3DC into each gap along the row.
At every corner, work the corner set.
In the chain-1 space before the inner corner, work 3DC.
Skip the chain-2 space.
Chain 1.
Work 3DC into the next chain-1 space.
Continue this pattern around the square.
Chain 1.
Slip stitch into the 3rd chain of the beginning chain 3.
Cut and secure the yarn.
Rows 15–20: Color Changes
Introduce the third color at any point you prefer.
Complete the final six rows using the same general construction as the earlier granny-square sections.
Continue changing colors according to your chosen color scheme.
The pattern is flexible, so you can add additional color bands or work more rows in each color if you want to make a larger throw.
Finishing the Outer Edge
After completing Row 20 and joining with a slip stitch:
Chain 1.
Turn your work.
Work the final edge from the back of the project.
For this design, the finishing edge uses a Barred Single Crochet.
This stitch creates an attractive two-sided edge that complements the double-sided texture of the throw.
How to Make the Barred Single Crochet
The Barred Single Crochet is worked by bringing the working yarn forward and positioning it along the edge of your hook.
Barred SC Step by Step
Use the side of your crochet hook to pull the working yarn forward.
Insert your hook into the top of the next double crochet.
Bend the handle of the hook slightly down and toward the front.
This positions the working yarn so it can be caught along the edge of the stitch.
Pull the working yarn through the stitch.
Release the yarn from your thumb.
Yarn over.
Pull through both loops on the hook to complete the single crochet.
Use the side of your crochet hook to pull the working yarn forward.
Insert your hook into the top of the next double crochet.
Bend the handle of the hook slightly down and toward the front.
This positions the working yarn so it can be caught along the edge of the stitch.
Pull the working yarn through the stitch.
Release the yarn from your thumb.
Yarn over.
Pull through both loops on the hook to complete the single crochet.
Barred SC Quick Summary
Pull the yarn forward → insert the hook → position the working yarn → catch the yarn → pull through → yarn over → pull through both loops.
Continue around the entire outer edge.
Final Finishing
When you reach the beginning:
Slip stitch to the starting chain.
Fasten off.
Cut the yarn.
Weave in the remaining yarn ends.
Your Squared Diamond Granny Throw is complete!
Crochet Pattern Tips
Keep Your Tension Consistent
Try to maintain consistent tension throughout the project. This will help your squares remain even and make joining easier.
Use Even Numbers of Rounds
Remember to work an even number of rounds when creating the main square sections. This helps maintain the symmetrical appearance of the design.
Experiment With Colors
The original design uses five colors, but there is no need to follow the exact color arrangement.
Try:
Two-color combinations
Three-color combinations
Five-color gradients
Neutral tones
Bright contrasting colors
Different shades of the same color
Make Small Adjustments When Needed
Crochet is wonderfully forgiving.
If you need to adjust a stitch here or there to keep your sections aligned, small changes generally will not be noticeable in the finished blanket.
The most important thing is to maintain the overall shape and alignment of the squares.
Video Tutorial
If you prefer learning through video, a visual tutorial can be especially helpful for the joining sections and the more unusual techniques used in this pattern.
Video 2
Finished Squared Diamond Granny Throw
The finished Squared Diamond Granny Throw is more than just a cozy blanket. The combination of granny clusters, color changes, raised ridges, and layered diamond shapes gives it a distinctive decorative appearance.
The durable construction makes it suitable for everyday use, while the customizable colors make it easy to coordinate with your home décor.
It can also make a thoughtful handmade gift for birthdays, holidays, housewarmings, or other special occasions.
Happy crocheting! 🧶❤️
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