Create your own stunning Birthstone quilt block with a Tanzanite for December, using a single-foundation piecing technique to create the sparkling facets of this gemstone. This pattern includes gemstone template, detailed color chart and assembly instructions. Create this block on its own or create the full series with all 12 gemstones. A great project for a confident beginner. Material requirements include: (4) 18" x 6" fabric pieces in assorted purples or blues; (2) 18" x 9" fabric pieces in blue or purples; (1) 6" x 6" fabric piece in light blue; (1) 12" X 9" blue fabric piece; (1) 9" x 9" fabric piece in medium purple. eQuilter product code FAFQBTAN Fat Quarter pack satisfies the fabric requirements. 'The Birthstone Series: Tanzanite' block pattern by MJ Kinman. Finished size is about 17" x 17".