Delaware Quilts

Mosaic


For a 12 inch finished Mosaic block you need:
          From your background (white) cut six 3 7/8 inch squares
          From color two (yellow) cut two 3 7/8 inch squares
          From color three (blue) eight 3 7/8 inch squares

          

You will be making all diagonal squares for this block. Take the 3 7/8 inch squares of blue and background, place them right sides together. Carefully draw a line down the center, corner to corner, diagonally across the block. (This will be a cutting line when you are finished.) Now if you have a true 1/4 inch foot on your machine, you can sew on either side of this drawn line. If not, you will have to draw a second line on either side, exactly 1/4 inch from the first line. These will be your sewing lines. After you have sewn on your sewing lines, you will cut this square in half on your cutting line. Don't forget to trim your dog ears. Your finished diagonal half-squares should measure exactly 3 1/2 inches.

Repeat with all of your squares.
You need 12 like this and four like this

Now assemble in rows.

Make two rows like this, the top and bottom of the block.


And make two rows like this, the middle two rows of the block.

Now assemble your Mosaic block as shown here.
My Mosaic block.

Here are the size squares you need to make the diagonal half square for different sizes of Mosaic blocks.
      For a 3 inch block cut 1 5/8 inch square for your diagonal half squares
      For a 6 inch block cut 2 3/8 inch square for your diagonal half squares
      For a 9 inch block cut 3 1/8 inch square for your diagonal half squares
      For a10 inch block cut 3 3/8 inch square for your diagonal half squares
      For a12 inch block cut 3 7/8 inch square for your diagonal half squares
Remember, these are finished sizes, after the block is sewn in the quilt.                    


This pattern can be used for personal use only and can not be used commercially without the owner's permission. No copies may be made
without the owner's permission. This includes the patterns as well as any graphics and/or instructions that are associated with a pattern.
The content on these pages, including text and images are the sole property of the Delaware Quilts and may not be used in any manner without consent. All Rights Reserved.
Mosaic © Delaware Quilts January 2007

Updated October 17, 2025

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