You will need a size 3US 3.25 mm circular needle, at least 48” (120 cm) long for the collar.

Finished measurements:
Bust: 38(41.5, 45.5, 49, 53)“ 96(106, 116, 124, 134) cm
Finished length: 21.5(22, 23, 23.5, 24.5) 54(56, 58, 60, 62) cm
Sleeve drop: 6(6, 6.5, 6.5, 6.5)” 15(15 ,16, 16, 16) cm

Yarn used:
Rowan Cotton Cashmere
Seed #212 6(6, 7, 7, 8) balls