Cyan Design Strata 12194 Vase in White and Blue. The Strata Vases feature a thick white glass casing that covers a muted blue interior. Skilled artisans meticulously carve a ribbed pattern into the surface, revealing glimpses of the moody blue hues beneath. The irregular movement of the tribal design makes each piece a true work of art. Available in multiple sizes, they create a striking display when grouped.