The large color variety presents another challenge in production: reaching an even, delicate color requires the exact temperature, timing and a great deal of expertise in glass-mass chemistry.

The fluidity and vibrant feel of the mouth blown glass creates the delicate character for the new Iittala collectible vase Ruutu. Created by Ronan and Erwan Bouroullec, Ruutu might be simple in shape but it takes the most skilled craftsmen in the glass factory to produce.

Ruutu, which means diamond or square in Finnish, is a collection of 10 vases available in five sizes and seven colours. When collected and combined, they make small seamless installations where both the strength and the delicate nature of the glass come alive.