Today’s Crochet Square is another twist on one of my favourite granny squares. I call this one the Mystic Gem. It’s got a rich, geometric vibe and a diamond shape right in the middle, which you might recognize… because that centre is actually the first 7 rounds of my Mystic Harmony Square! In the same fashion as my Fusion Diamond design, I have taken a square given it a twist and added some fancy corners onto it. It’s a little bit like an upgrade.
It’s has a stunning stained glass window effect, which is where the name Gem comes from. And the best part is it gives you even more room to play with colour. You know me—I love adding extra colour wherever I can, and this design really makes space for that.
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 the Mystic Harmony Square that’s already completed up to Round 7. All rounds will be the same except a slight change on Round 6 I use a ch 1 instead of a ch 2 between my single crochets. I’m using my usual 5.0 mm hook, along with a darning needle and scissors.
Let’s get started and bring The Mystic Gem 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!

Materials You’ll Need
** affiliate links below **
For this project, I’m using worsted weight yarn in six colours, but feel free to choose your own colour palette.
Here’s what I used for my version of the Mystic Gem:
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?
- Smoke by Impeccable
- Mallard by Red Heart with Love
- Sage Mist by Bernat Premium
- Natural by Bernat Super value
- Misty Blue by Impeccable
- Forest Green by 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
Rnds 1 – 11 = 7 ½” x 7 ½” / 21.5 cm x 21.5 cm
Rnds 1 – 12 = 8 ½” x 8 ½” / 24 cm x 24 cm
Scroll Down For The Mystic Gem 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
Special Stitches:
Double Crochet Cluster –[ DC CL ] : * Yarn over, insert hook into ch-space and pull up a loop, yarn over and pull through two loops on hook, rep from * two more times, yarn over, pull through all four loops on hook
Beginning Double Crochet Cluster – [ Beg DC CL ]: ch 2, * yarn over, insert hook into ch-space, pull up a loop, yarn over, pull through two loops on hook, rep from * one more time, yarn over pull through all three loops on hoo
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
Mystic Harmony Base Square Instructions:
With First Col, Make a Magic Ring,
OR alternative to Magic Ring is to Ch 4, sl st in first ch to form a ring
Rnd 1: Continue with Same Col, ch 2 ( counts as first hdc ), work 11 hdc into ring, sl st in 2nd ch of beg ch-2, fasten off { 12 hdc }
Rnd 2: Join Next Col with a sl st in any hdc st of prev rnd, ch 1, sc in same st as join, ch 1, ( sc in next st, ch 1 ) 11 times, sl st in first sc, fasten off. { 12 sc, 12 ch-1 sp }
Rnd 3: Join Next Col with a sl st in any ch-1 sp of prev rnd, ch 1, sc in same st as join, ch 2, ( sc in next ch-1 sp, ch 2 ) 11 times, sl st in first sc, fasten off. { 12 sc, 12 ch-2 sp }
Rnd 4: Join Next Col with a sl st in any ch-2 sp of prev rnd, work a Beg DC CL in same ch-2 sp, ch 3, [ DC CL in next ch-2 sp, ch 3 ] 11 times, sl st in top of Beg DC CL, fasten off. { 12 DC CL, 12 ch-3 sp }
Rnd 5: Join Next Col with a sl st in any ch-3 sp of prev rnd, ch 3 ( counts as first dc ), 2 dc in same ch-3 sp as join, * ( ch 1, 3 sc in next ch-3 sp, ) twice, ch 1, ** ( 3 dc, ch 3, 3 dc ) in next ch-3 sp, rep from * 2 more times, then from * to ** once more, 3 dc in same ch-3 sp as join, ch 3, sl st in 3rd ch of beg ch 3, fasten off. { 24 dc, 24 sc, 12 ch-1 sp, 4 ch-3 sp }
Rnd 6: Join Next Col with a sl st in any ch-3 corner sp of prev rnd, ch 1, sc in same ch-sp as join, * ( ch 1, sk next st, sc in next st, ch 1, sk next st, sc in next ch-1 sp ) three times, ch 1, sk next st, sc in next st, ch 1, sk next st, ** ( sc, ch 3, sc ) in next ch-3 sp, rep from * 2 more times, then from * to ** once more, sc in same ch-3 sp as join, ch 3, sl st in first sc, fasten off. { 36 sc, 31 ch-2 sp, 4 ch-3 sp }
Rnd 7: Join Next Col with a sl st in any ch-3 corner sp of prev rnd, ch 1, sc in same ch-sp as join, * ch 1, ( sc in next ch-2 sp, ch 1 ) 8 times, ** ( sc, ch 3, sc ) in next ch-3 sp, rep from * 2 more times, then from * to ** once more, sc in same ch-3 sp as join, ch 3, sl st in first sc, fasten off. { 40 sc, 36 ch-1 sp, 4 ch-3 sp }

Turning the Square into the Mystic Gem
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 Mystic Harmony 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.
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 a full walk through video – scroll down for to view
So if you’ve got your Mystic Harmony Base Square ready through Round 7, grab your yarn and let’s get started on the Mystic Gem!

Triangle Corner Sections Instructions for the Mystic Gem
For each side of square, count over 5 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.
These next 3 rows are worked from Right to Left on the Right Side of the work.
Row 8: Join Next Col with a sl st in the 2nd ch-1 sp to the right of the stitch marked space on Rnd 7, ch 1, ( dc, ch 1 ) 6 times in ch-sp with stitch marker, sl st in 2nd ch-1 sp to the left of the stitch marked space, fasten off. { 6 dc, 7 ch-1 sp }
Row 9: Join Next Col with a sl st in the 2nd ch-1 sp of Rnd 7, to the right of the first sl st from prev row, ch 1, ( dc, ch 1 ) in each of next 3 ch-1 sp, ( dc, ch 3, dc ) in next ch-1 sp, ( ch 1, dc ) in each of next 3 ch-1 sp, ch 1, sl st in 2nd ch-1 sp to the left of the sl st in Rnd 7 from prev row, fasten off. { 8 dc, 8 ch-1 sp, 1 ch-3 sp }
Row 10: Join Next Col with a sl st in the ch-3 sp of Rnd 7 to the right of the first sl st from prev row, ch 1, ( hdc, ch 1 ) in each of next 4 ch-1 sp, ( hdc, ch 3, hdc ) in next ch-1 sp, ( ch 1, hdc ) in each of next 4 ch-1 sp, ch 1, sl st in ch-3 sp to the left of the sl st in Rnd 7 from prev row, fasten off. { 10 hdc, 10 ch-1 sp, 1 ch-3 sp }

Border Rounds
These next rounds are worked around the entire square in the same manner as the Mystic Gem 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 sc in any corner ch-3 sp of Row 10, * ch 1, ( sc in next ch-1 sp, ch 1 ) 5 times, sc in next ch-3 sp from Rnd 7, ch 1 ( sc next ch-1 sp, ch 1 ) 5 times, ** ( sc, ch 3, 2 sc ) in next ch-3 sp corner of Row 10, rep from * 2 more times, then from * to ** once more, sc in same ch-3 sp as join, ch 3, sl st in first sc, fasten off. { 52 dc, 48, ch-1 sp, 4 ch-3 sp }
You can finish the Square here or continue to add more rounds as follows:
Rnd 12: Join Next Col with a sc in any corner ch-3 sp of prev rnd, * ch 1, ( sc in next ch-1 sp, ch 1 ) 12 times, ** ( sc, ch 3, sc ) in next ch-3 sp, rep from * 2 more times, then from * to ** once more, sc in same ch-3 sp as join, ch 3, sl st in first sc or rnd, fasten off.
{ 56 sc, 52, 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 Mystic Gem Crochet Square
- Weave in any loose ends, block gently to size
Crochet along with me in as I walk you through the Steps of the Mystic Gem
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
