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Diamond Chart and Free Crochet Pattern for an Afghan Square

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This design is part of a series of crocheted afghan squares, all of which are the same size; the free charts and crochet patterns for these designs are all available on our website. Visit our list of mix and match afghan squares to see more designs in this series.
Diamond Chart for Crocheting an Afghan Square

Diamond Chart for Crocheting an Afghan Square

Chart and Free Crochet Pattern © Amy Solovay

There are many different ways that you could use the diamond chart pictured above. So far, I've crocheted two different version of the pattern:

The diamond afghan square is made in single crochet using the tapestry crochet technique, with surface crochet details added afterwards. The surface crochet outlines the outer edges of both the diamond and its background, making the design appear to stand out a bit more than it would otherwise.

The easiest way to work this pattern is to follow the color chart above. Each square on the chart represents one single crochet stitch. Written instructions follow:

Design Notes:

To work this pattern, you'll need to know how to do mid-row color changes in single crochet stitch; to make my sample square, I used the tapestry crochet technique for changing colors and crocheting over my inactive yarn. Some of the rows in this pattern have two colors; when you're not using a color, you'll crochet overtop of that color until you need it again. Anticipate your color changes prior to working them; when you're ready to change colors, you'll need to stop short of completing the last stitch in the old color, pull through a loop of the new color, and then complete your stitch with the new color. See this tutorial for changing colors in single crochet stitch to see how to do color changes.

Between rows, crochet one chain stitch for a turning chain.

Materials:

Worsted weight yarn in 3 different colors. To work my sample square, I used Caron Simply Soft yarn in the following colors:

  • Khaki / tan -- Bone = Color A (Main color)
  • Blue -- Blue Mint = Color B
  • Green -- Sage = Color C

Feel free to substitute other colors or brands of yarn.

Crochet Hook:

Size H / 8 - 5.0 mm

Needle:

Tapestry Needle for weaving in ends

Finished Size:

The finished square measures 6.25 inches x 6.25 inches prior to adding the edging, and about 6.5 inches square afterwards.

Gauge:

4 sts = 1 inch

Matching this gauge isn't critical unless you have a need for each square to be exactly the same size as my sample; however, if you plan to use multiple squares in the same project, you do need to be sure they all turn out to be the same size.

Abbreviations Used in This Pattern:

Afghan Square Instructions:

Using Bone yarn, ch 26.

Color Pattern:

At the end of each row, check to make sure you have 25 sc sts total.

Rows 1 - 5: Working in Bone, sc all the way across the row. (Total of 25 sc sts per row.)

Row 6: Work 5 sc sts in Bone, 7 sc sts in Blue Mint, 1 stitch in Bone, 7 sts in Blue Mint, 5 sc sts in Bone. (This gives you a total of 25 sc sts.)

Row 7: Work 5 sc sts in Bone, 6 sc sts in Blue Mint, 3 sts in Bone, 6 sc sts in Blue Mint, 5 sts in Bone.

Row 8: Work 5 sc sts in Bone, 5 sc sts in Blue Mint, 5 sts in Bone, 5 sc sts in Blue Mint, 5 sts in Bone.

Row 9: Work 5 sc sts in Bone, 4 sc sts in Blue Mint, 7 sts in Bone, 4 sc sts in Blue Mint, 5 sc sts in Bone.

Row 10: Work 5 sc sts in Bone, 3 sc sts in Blue Mint, 9 sts in Bone, 3 sts in Blue Mint, 5 sts in Bone.

Row 11: Work 5 sc sts in Bone, 2 sc sts in Blue Mint, 11 sts in Bone, 2 sc sts in Blue Mint, 5 sts in Bone.

Row 12: Work 5 sc sts in Bone, 1 sc st in Blue Mint, 13 sts in Bone, 1 sc st in Blue Mint, 5 sts in Bone.

Row 13: Work entire row in Bone.

Row 14: Repeat row 12.

Row 15: Repeat row 11.

Row 16: Repeat row 10.

Row 17: Repeat row 9.

Row 18: Repeat row 8.

Row 19: Repeat row 7.

Row 20: Repeat row 6.

Rows 21-25: Work entire row in Bone.

Edging

An edging is optional. For my sample square, I chose to work an edging in sl st. To work this edging, change colors to Blue Mint and use it to crochet a round of sl st all the way around the square; then change colors to Sage and crochet another round of sl st, working into the back loops only.

I like this edging because it facilitates the joining of my squares when I am finished crocheting them; I can line up the slip stitches precisely, and then I whip stitch through the slip stitches. However, you can skip the edging or choose a different one if you like. Be sure to browse through our free edging patterns to see more options.

Finishing the Square:

End off. Add details using slip stitches in surface crochet: First, using Blue Mint, crochet an outline around the stitches worked in Blue Mint. Second, using Sage, crochet an outline around the Bone-colored diamond in the center of the afghan square. You can click here to see additional work-in-progress photos if you would like a closer look at each of these steps.

Weave in ends.

You can now use this square to create your project, whether you have an afghan or other project in mind. Be sure to check out the list of matching afghan squares to see other designs that go well with this one.

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