This is merino (50%)/mulberry silk (50%) blend DK weight yarn. 225m/100g. I was just testing out how sapphire works with some soft magnolia and grey and it turned out lovely.  The variation in the skein will work up gorgeously. One skein will make a number of projects or take both -- they will match they were dyed together. The 50% silk adds a little more luxury and the sheen is incredible.