Welcome back, friends! I’m so glad you’re here because today I’m sharing a fresh spin on one of our all-time favourite squares—the Fusion Square. This new version adds a playful twist and a whole lot of colour, and I’m calling it the Fusion Diamond.
This design builds off the familiar rhythm of those two double crochet groups, but with a dynamic new shape and layout that gives it a quilt-like vibe—almost like something you’d see in a patchwork blanket made from treasured fabric scraps. Each row in the Fusion Diamond features a new colour, adding depth, movement, and a sense of joyful layering to the square.
The idea started with a simple question: What would happen if I could shape a diamond right out of the Fusion Square structure? I’ve seen similar designs that lean into a kaleidoscope effect, but I really wanted to stay true to the spirit of the Fusion Square—keeping that foundation intact while building something new and eye-catching on top of it.
I’ve been experimenting with all sorts of colour combinations lately, and if you’re curious about how I put them together—or you’d love a peek at alternate versions and colour explorations—you’ll find loads of that creative goodness over on my Patreon. It’s where I share behind-the-scenes process, inspiration, and plenty of palette play.
I’ll be working from a Fusion Square that’s already completed up to Round 7. I’m using my usual 5.0 mm hook, along with a darning needle and scissors. With all the colour changes, there’ll be a few more ends than usual—but I like to weave them in as I go to keep things tidy.
Let’s get started and bring The Fusion Diamond to life, one colourful round at a time!
You can find more captivating colour combinations for your squares over on my Instagram and Pinterest.
I love sharing lots of pics of my colour experiments there!
Pattern Details
The Fusion Diamond Crochet Square consists of 11 rounds.
The final piece measures approximately 8 ½ inches ( 21.5 cm )
Materials You’ll Need
** affiliate links below **
For this project, I’m using worsted weight yarn in seven colours, but feel free to choose your own colour palette.
Here’s what I used for my version of the Fusion Diamond:
One of my Favourite Places to order yarn online is Mary Maxim Yarns – they carry a nice variety of colours and brands at affordable prices, and they also offer great coupons to inspire you to keep coming back for more, because can you really have too much yarn?
- Sage Mist – Bernat Premium
- Forest Green – Bernat Super Value
- Sphagnum – Impeccable – Loops and Threads
- Purple Ash – Bernat Premium
- Plum – Impeccable – Loops and Threads
- Mulberry – Bernat Super Value
- Natural – Bernat Super Value
Hook: 5.00 mm US 8 / H
My Favourite Hook is the Susan Bates Ergonomic Silvalume
Other Supplies:
- Scissors
- Yarn needle for darning in ends
- Stitch Marker
Gauge / Finished Size of the Classic Gran Crochet Square
8.5 x 8.5 inches / 21.5 x 21.5 cm
Scroll Down For The Fusion Diamond Crochet Square VIDEO TUTORIAL
Abbreviations:
ch – chain
st(s)– stitch(es)
sl st – slip stitch
sc – single crochet
hdc – half double crochet
dc – double crochet
tr – treble crochet
lp(s) – loop(s)
yo– yarn over
rnd – round
beg – beginning
prev – previous
sp – space
sk – skip
rep – repeat
dec – decrease
Cont – continue
Col – Colour
More Information on Hooks Sizes, Yarn Weights and Crochet Language
Hook Sizes see the Craft Yarn Council’s Page Here
For Standard Yarn Weight Information See this Page
A Handy PDF from Annie’s on the difference between UK and US Crochet Terms
A Nice Explanation from LoveCraft’s on The UK and US differences
SCROLL DOWN FOR VIDEO TUTORIAL
Fusion Diamond Instructions:
Work the Base Square Following the First 7 Rounds of the Original Fusion Square Here: Fusion Granny Square – Perfect Blend of Classic & Modern Crochet
We’ll be adding four triangle sections—one to each side of the square—which is what gives this design its distinct diamond shape. These triangles are worked in rows, building out from the base of a Fusion Square that’s already completed through Round 7. That makes our next steps Rounds 8, 9, and 10, with each triangle forming one side of the diamond.
I’ll also walk you through how to work these triangle sections in a single colour. That version creates a more framed effect with a slightly different finish, since the rows are worked back and forth rather than changing colours each time.
Once all four triangle sections are done, we’ll finish things off with a full round—Round 11—to pull everything together. You can stop there, or keep going and build it out further if the creative urge strikes!
All these techniques are in full walk through videos – scroll down for those
So if you’ve got your Fusion Square ready through Round 7, grab your yarn and let’s get started on the Fusion Diamond!
Triangle Corner Sections
For each side of square, count over 3 ch-1 sps from the corner ch-3 of Rnd 7, place a stitch marker in this center ch-1 sp. This is the stitch you will be working your first dc sts into for Row 8
Version 1 – Changing Colours Every Row
This version is worked in rows, always working from Right to Left on the Right Side of the work.
Row 8: Join next colour with a sl st in the 2nd st to the right of the stitch marked space on Rnd 7, ch 1, ( 2 dc, ch 3, 2 dc ) in ch-sp with stitch marker, ch 1, sl st in second st to the left of the stitch marked space, fasten off. { 4 dc, 2 ch-1 sp, 1 ch-3 sp }
Row 9: Join next colour with a sl st in the 2nd st to the right of the sl st into Rnd 7 from prev row, ch 1, 2 dc into first ch-1 sp of prev row, ch 1, ( 2 dc, ch 3, 2 dc ) in ch-3 sp, ch 1, 2 dc in next ch-1 sp, ch 1, sl st in 2nd st to the left of the sl st in Rnd 7 from prev row, fasten off.
Row 10: Join next colour with a sl st in the 2nd st to the right of the sl st into Rnd 7 from prev row, ch 1, 2 dc into first ch-1 sp of prev row, ch 1, 2 dc in next ch-1 sp, ch 1, ( 2 dc, ch 3, 2 dc ) in ch-3 sp, ch 1, 2 dc in next ch-1 sp, ch 1, 2 dc in next ch-1 sp, ch 1, sl st in 2nd st to the left of the sl st in Rnd 7 from prev row, fasten off.
Crochet along with me in as I walk you through the Steps of the Multi Colour Corners
Version 2 – Solid Colour Row 8 -10
This version is worked in rows, working back and forth turning work for each row.
Row 8: Join next colour with a sl st in the 2nd st to the right of the stitch marked space on Rnd 7, ch 1, ( 2 dc, ch 3, 2 dc ) in ch-sp with stitch marker, ch 1, sl st in 2nd st to the left of the stitch marked space from Rnd 7, Do not turn yet. { 4 dc, 2 ch-1 sp, 1 ch-3 sp }
Row 9: Ch 2, sl st in 2nd st to the left of st just sl stitched into from Rnd 7, turn, dc in last ch-1 of prev rnd, ch 1, ( 2 dc, ch 3, 2 dc ) in ch-3 sp, ch 1, 2 dc in next ch-1 sp, ch 1, sl st in 2nd st to the left of the sl st in Rnd 7 from prev row, Do not turn yet { 8 dc, 4 ch-1 sp, 1 ch-3 sp }
Row 10: Ch 2, sl st in 2nd st to the left of st just sl stitched into in Rnd 7, turn, dc in last ch-1 of prev rnd, ch 1, 2 dc into next ch-1 sp, ch 1, ( 2 dc, ch 3, 2 dc ) in ch-3, ch 1, ( 2 dc in next ch-1 sp, ch 1 ) twice, sl st in 2nd st to the left of the sl st in Rnd 7 from prev row, fasten off.
Crochet along with me in as I walk you through the Steps of the Solid Colour Corners
Border Rounds
These next rounds are worked around the entire square in the same manner as the Base Square. Stitches are worked into Row 10 from all triangles and also the ch-3 corner spaces of Rnd 7,
Rnd 11: Join Next Col with a sl st in any corner ch-3 sp of Row 10, ch 3, { counts as first dc } dc in same ch-sp, * ch 1, ( 2 dc in next ch-1 sp, ch 1 ) 3 times, 2 dc in next ch-3 sp from Rnd 7, ch 1 ( 2 dc next ch-1 sp, ch 1 ) 3 times, ** ( 2 dc, ch 3, 2 dc ) in next ch-3 sp corner of Row 10, rep from * 2 more times, then from * to ** once more, 2 dc in same ch-3 sp as join, ch 3, sl st in 3rd ch of beg ch-3, fasten off.
{ 72 dc, 32, ch-1 sp, 4 ch-3 sp }
Rnd 12: Join Next Col with a sl st in any corner ch-3 sp of prev rnd, ch 3, { counts as first dc } dc in same ch-sp, * ch 1, ( 2 dc in next ch-1 sp, ch 1 ) 8 times, ** ( 2 dc, ch 3, 2 dc ) in next ch-3 sp, rep from * 2 more times, then from * to ** once more, 2 dc in same ch-3 sp as join, ch 3, sl st in 3rd ch of beg ch-3, fasten off.
{ 80 dc, 36, ch-1 sp, 4 ch-3 sp }
Additional Rounds can be added by repeating Round 12 and with one more repeat of the bracket each Round.
Finishing The Fusion Diamond Crochet Square
- Weave in any loose ends, block gently to size
Check out my Shop where I regularly release new patterns using all my squares.
All shop patterns include a symbol chart version of the square as well as various colour way diagrams
Thanks for joining me and getting creative. ~ Jane ~
“I found I could say things with colour and shapes that I couldn’t say any other way – things I had no words for.” – Georgia O’Keeffe
