Sferra Diamante. Made with Sferra Giotto Sheeting, this Fine Linens Collection is Gorgeous Heirloom Bedding. Sferra's luxuriously sleek sateen, Giotto, is the sheeting for this lace-embellished ensemble, Diamante. A macramé lace inset is threaded through its center with a narrow satin ribbon. To add a final bit of polish and patina, the lace is stitched on either side with delicate hemstitching, making a beautifully refined and elegant bed.