Mosaic Crochet Sweater Pattern – The Starlight Collection

The Starlight Mosaic Crochet Sweater Pattern is a stunning top-down, try-it-on-as-you-go design packed with endless customisation options. From shaping techniques that help you achieve the perfect fit to limitless colour combinations that let your creativity shine, this seamless overlay mosaic crochet sweater is made to suit you.

Sized from XS to 5XL, it’s a truly inclusive pattern that can be adapted in countless ways — change the sleeve length, adjust the body, add a neckline or leave it open — the possibilities are endless.

Launching as part of the Starlight Collection Crochet Along this October 2025, this pattern celebrates texture, comfort and fit, bringing you a project that’s both relaxing to make and beautiful to wear.

And it doesn’t stop there — the matching hat and mitten patterns are coming soon! These coordinating designs will be available this month so you can complete the full Starlight set in your favourite colours!

All About The Crochet Along

In this post you’ll find everything you need to know to get ready to make your mosaic crochet sweater, including materials, stitches, where to access the pattern and video tutorial and what customisation and fitting options there are for you 🙂

You’ll also find information on the yarn and materials you’ll need for making the hats and mittens so you can order your yarn to match your sweater if you plan to make a set!

Let’s start by organising and ordering our yarn:

These are a category 3 light weight yarn which is what gives this top its shape and drape. Check out our handy yarn weight chart and guide to find out more about yarn weights and categories.

Here are the colour combinations I used for my sweaters:

Option 1: (1st image) Mellowspun: Buff, Prism: Surfside

Option 2: (2nd image) Mellowspun: Sand, Prism: Succulent

Option 3: (3rd image) Mellowpsun: Black, Prism: Sandstorm

You’ll see there are loads of other glorious combinations you can choose from – some of my other favourites are:

Option 4: (1st image) Mellowspun: White, Prism: Tropics

Option 5: (2nd image) Mellowspun: Sand, Prism: Autumn Mist

Option 6: (3rd image) Mellowspun: Nutmeg, Prism: Blue Lagoon

Sizing and Yarn Quantities

The Sweater is designed to have a small amount of ease all over with straight sleeves. The garment is worked from the top down so it is simple to change the length of both the Body and the Sleeves as you’d like.

Sizes: XS (S, M, L, XL) (2XL, 3XL, 4XL, 5XL)

To fit chest size: 30 (34, 38, 42, 46) (50, 54, 58, 62) inches

Finished sweater circumference: 32 (36, 40, 44, 48) (52, 56, 60, 64) inches

Full schematic included in the PDF pattern.

There are numerous options for adding length to the sweater body, cuff and sleeves to make it perfect for you but make sure to order plenty of yarn if you are making adjustments to the pattern.

The following yarn amounts are estimated as a total as the pattern is written, with a neck rib band and worked to the length of body with a bottom band and long sleeves with cuffs as in the pattern.

If you would like to order enough yarn to make the hat and mittens to then this is how much you’ll need:

Hat Sizes: Newborn (Baby, Toddler, Child, S/M Adult, L Adult)

Yarn A: 70 (80, 90, 120, 170, 199)yds (1 ball per size)

Yarn B: 30 (34, 39, 51, 73, 85) yds (1 ball per size)

Mitten Sizes: Toddler (Child, Adult)

Yarn A: 160 (190, 215)yds (1 ball per size)

Yarn B: 44 (58, 73)yds (1 ball per size)

Now let’s get back to the sweater and look at the mosaic crochet technique we use and the customisation options you have!

Other Materials

Don’t forget to join HanJan Crochet to receive regular discount codes (and access to free patterns!) and Pin this colourful crochet sweater pattern to your crochet Pinterest board!

Overlay Mosaic Crochet Technique

Before we chat about the customisation options you might want to add to your sweater let’s look at the technique we use in the sweater yoke (the circular part at the top with all the colours) in case you haven’t done it before.

Firstly, I promise it’s easier than it looks!

We are using overlay mosaic crochet worked in rounds for the sweater (and hat and mittens) so that means that not only do you only use 1 colour of yarn per round but that you can also carry your yarn at the back of your work.

So yep! That means no ends to weave in! It’s worth trying just for that don’t you think?!

The only things we need are US single crochet (UK double crochet) and US mosaic double crochet (UK mosaic treble crochet) stitches to create the patterns.

 We change colour every round and we work either a single crochet into the back loop only of the stitch, or we work a mosaic double crochet stitch into the front loop of the stitch 2 rows or rounds below. This is all explained in much more detail in our mosaic crochet tutorial.

Mosaic Crochet Charts

The other important aspect of this technique is learning how to read a mosaic crochet chart. Again, they aren’t as complicated as they look and you’ll pick it up in no time!

Another thing to know though is that you don’t have to read the charts to make the pattern! Each round is written out in full if you prefer to follow that way 🙂

Making Your Mosaic Crochet Sweater Perfect For You

Although the garment comes in so many sizes, there are still some things you can easily do to adjust it to fit you perfectly. I suggest choosing the garment chest size that you’d feel most comfortable wearing and then checking ‘customisation’ below for details of how you can adjust various parts.

Once you have chosen the correct chest size you’d like to make, the rest of the design is easy to adjust to fit as you would like it to. As you can see from all the versions I made there are so many ways to adapt it!

The Sweater is designed to have a small amount of ease all over with straight sleeves. The garment is worked from the top down so it is simple to change the length of both the Body and the Sleeves as you’d like.

BODY FIT

Proportion of Back and Front Stitches

The pattern is written to have the Front measure 1 inch bigger than the Back for a better fit over the bust.

If you would like more room at the Front then you can work less stitches for the Back and more for the Front as desired. Every 10 sts will adjust by 1 inch. The great thing about the top down construction means you can try this on and adjust to suit you perfectly.

Sleeve Armhole Depth

You can adjust the armhole by working more or less Back Short rows. Each row will add another stitch to the armhole and you can continue to adjust until you have the perfect fit.

Before adjusting the armhole I would recommend blocking the Yoke to see how that changes the overall fit.

LENGTH

Main Body Length: To adjust the length, you can work more or less rounds of the Body as you like before adding the Bottom Rib. If you don’t want a Bottom rib then work the Body to the final length you desire and fasten off.

Bottom Rib: you can adjust the Bottom Rib length by working more or less stitches in the Join as You Go Method.

Sleeve Length: You can adjust the Sleeves by working as many or as few rounds of the Sleeves before adding the Sleeve Cuff if desired. If you don’t want a Sleeve Cuff then work the Sleeves to the final length you desire and fasten off.

Make sure to work a matching number of rounds for each sleeve.

Making a crochet gauge swatch is important when crocheting projects like garments to ensure that it ends up the desired size.

If you’d like to work a swatch ahead of purchasing the pattern then you can this as follows:

Foundation Chain: Using the larger hook, ch45, taking care not to twist, ss in 1st ch to join. [45]

Round 1: sc in each ch around, ss in 1st to join.

Round 2: ch1, sc in blo of each st around, ss in 1st to join.

Repeat Round 2 until you until you have enough to measure and be sure your gauge is correct.

Mosaic Crochet Sweater Pattern

The sweater pattern will only be available as a paid PDF option. The hat and mittens will be both paid and free to view on the blog.

Pattern Support

I am delighted to invite you to join the HanJan Crochet Community Facebook Group where we host all pattern support queries and love to see your progress, yarn choices and finished projects! 

Join HanJan and Share Your Crochet With Us!

I’d love to hear from you and see your HanJan Crochet project! Here’s where you can do that:

📌 PIN THIS POST – save it to your Pinterest crochet board so you can come back to it again and make more!

↗️  SHARE – Share your yarn choices, progress pics, and finished projects on Facebook or Instagram (make sure to use the hashtag) #hanjancrochet

🧶 JOIN – Join thousands of amazing crafters in the HanJan Crochet Community Group on Facebook ready to cheer you on!

✉️📩📬 SUBSCRIBE – It’s an honour to be able to create and share my free crochet patterns with you. I’d love to stay connected and send you regular discount codes and free patterns! Please sign up for my subscriber list to get a free gift right now! 

More Overlay Mosaic Crochet Patterns You Might Enjoy

If you love this then I have more fun mosaic patterns for you!

• Mosaic Crochet Hat – the Labyrinth hat is a maze of mosaic!
• Crochet Christmas Stocking Pattern – with 6 designs to choose from.
• Mosaic Crochet Tote Bag Pattern – stylish and easy.
• Have a browse of all of my mosaic crochet patterns and pick your next project!