When summer arrives, you may prefer a quick crochet DIY with cotton yarn, rather than working on a heavy wool sweater. I have the perfect crochet necklace pattern for summer that may be just what you need! The “Mermaid Necklace” is made with DK (light) cotton yarn, works up quickly, and makes a striking accessory!

The crochet pattern is part of my FREE “Lazy Days of Summer” crochet-a-long, happening May 26 through June 13, 2025.

Click the button below to sign up for the CAL – you’ll get notifications when each pattern releases, encouragement & tips, and a supply list. Be sure to share your makes on Instagram using hashtag #LazyDaysCAL!

Make a bold, beachy statement with this stunning Boho-inspired accessory—designed to channel your inner mermaid. 

The Mermaid Necklace is a lightweight yet dramatic piece, perfect for summer festivals, beach days, or just adding a splash of coastal magic to your everyday look. 

Featuring cascading tassels and the luminous shimmer of capiz shell accents, this necklace captures the essence of sun, sea, and sand. Its playful texture and natural movement make it as fun to wear as it is to crochet. 

Whether you pair it with your favorite sundress or gift it to your free-spirited friend, the Mermaid Necklace is sure to turn heads and spark conversations wherever you go!

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FREE NECKLACE CROCHET PATTERN

How to crochet a necklace

The free crochet pattern is easy to work if you are comfortable with a few treble stitches. The crochet necklace main piece is worked in just 6 rows, top down. You only need to know the BASIC CROCHET STITCHES plus the treble stitch to work this piece.

You will need the following supplies to make the crochet necklace:

Supplies

• Lion Brand Coboo Size 3 cotton (232 yds per skein)
  • Color: Silver, 20 yds total
• or CotLin Size 3 cotton (123 yds per skein)
  • Color: Swan, 20 yds total
• Size H/8 (5.0 mm) hook (or size to meet gauge)
• Scissors
• tapestry (yarn) needle
• Stitch Markers
• capiz shell discs (optional embellishments)
• crochet beads (optional embellishments)

Crochet Abbreviations

US Crochet terms are used.

Ch – chain

Ch- – refer to chain or space previously made, e.g., ch-1 sp

dc – double crochet

sc – single crochet

sl st – slip stitch

sk – skip

st(s) – stitch(es)

sm – stitch marker

tr – treble stitch

PATTERN INFORMATION

The crochet necklace FREE pattern is provided below, but you can also get the ad-free, printable pdf pattern (plus more!) as part of the PREMIUM CAL collection…

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SUMMER CROCHET NECKLACE PATTERN

Gauge: not critical

How to crochet a necklace

There are different types of crochet necklaces, and this one features one main shape with long ties to form a bold statement piece. Just the accessory you need this summer – a lightweight, beachy necklace with Boho flair! Wear it to the beach, shopping, or summer date night out.

NOTES: You will be crocheting the main piece of the necklace in rows, working top down. Next, you can block the piece and add two long ties on each top corner of the piece, to use for hanging the necklace. Add optional embellishments, too!

What yarn is best for a crochet necklace for summer?

Light cotton yarn is the best choice for a summer necklace, as are linen or bamboo yarns. You want the necklace to be lightweight & breathable for summer, and these natural fibers are great for that purpose.

Instructions to make the necklace are as follows…

Necklace Crochet Pattern

Follow the instructions below in the order indicated.

NOTE – Ch 1 does not count as a st, Ch 4 counts as one tr st. You can place a stitch marker in each row to keep track of first st.

Using size H/8 crochet hook, ch 16 with your yarn.

Row 1 (RS): Dc in 4th ch from hook (1st 3 ch count as 1 dc) and in each ch across. Turn. (14 sts)

Row 2: Ch 1, sc in first 6 sts, ch 5, sk next 2 sts, sc in last 6 sts. Turn. (12 sc sts, 1 ch-5)

Row 3: Ch 1, sc in 1st st, ch 2, work 7 tr in ch-5 sp, ch 2, sc in last st. Turn. (2 sc sts, 7 tr sts, 2 ch-2)

Row 4: Ch 4 (counts as 1st tr), tr in next 3 tr, 3 tr in next tr, tr in next 3 tr, tr in last sc st. Turn. (11 tr sts)

Row 5: Ch 1, sc in 1st tr, sc in next 4 tr, 3 dc in next tr, sc in next 5 tr. Turn. (10 sc sts, 3 dc sts)

Row 6: Ch 1, sl st in next 6 sts, (sc, ch 5, sc) in next st, sl st in last 6 sts. Turn. (12 sl sts, 2 sc sts, 1 ch-5)

Fasten off.

FINISHING

Block the necklace piece to form straight edges if desired.

Weave in loose ends to WS.

Add ties to hang necklace around neck:

Cut 2 strands of yarn, approximately 36” each (for a long necklace).

Feel free to cut them to a shorter length if you would like your necklace to hang higher.

Fold each 36” yarn piece in half, then loop through top corners of necklace piece.

Adding Fringe and Embellishments

If desired, you can add fringe to the bottom center hole of the necklace.

I did this by:

• cutting five pieces of yarn approx 8″ length each
• folding each piece in half
• using crochet hook to loop each piece through the bottom center hole

You can also sew small capize shell discs onto the necklace. I sewed 3 discs on the front of my sample ‘silver’ necklace.

Another option is to add fringe to the bottom center hole of the necklace and attach a crochet bead to the fringe to make a tassel. I did this with the ‘swan’ colored necklace by:

• cutting five pieces of yarn approx 8″ length each
• folding each piece in half
• using crochet hook to loop each piece through the bottom center hole
• using a tapestry needle to weave each piece of fringe through the holes of a crochet bead

Important Tips for Crocheting your necklace

Some things to keep in mind as you crochet the necklace are:

• It’s a good idea to use a stitch marker (sm) to keep track of the first st in each row.
• It’s a good idea to block the piece after crocheting, so that the edges are straight.
• The instructions have you make ties that are 18″ long each, but you can customize to any length you want to hang the necklace.
• Feel free to embellish the necklace as follows:
  • add fringe to the center bottom hole
  • add capize shell discs or crochet beads

Finished Size

The finished crochet necklace piece measures approximately 3.5″ width by 4″ length. Measurements do not include length of ties or fringe.

Using your Summer Crochet Necklace

Now it is time to enjoy showcasing your crocheted necklace accessory! Wear it for a day by the sea, or evenings out in the warm weather. The necklace will give you Mermaid and Boho vibes. Friends would love receiving one of these crochet necklaces as a perfect gift, too.

Just feature it as your main accessory with your favorite summer outfits…

What do you think of this free crochet neclace pattern? If you are a beginner at crochet, you can definitely make your own necklace. The main piece isn’t too hard to work up in just 6 rows, and it’s easy to add the necklace ties. Be sure to add this crochet necklace project to your list this summer. It is a great option for a simple afternoon project.

Don’t forget that this necklace crochet pattern is also available in the premium crochet-a-long collection.  The collection includes helpful photos and a video tutorial for the necklace.

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Be sure to share your finished necklace for the crochet-a-long: use hashtag #LazyDaysCAL on Instagram!

Love easy crochet necklace patterns? Check out this other FREE crochet pattern for a similar Boho styled necklace…

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