Sleeveless Tunic in sizes 2/4/6/8/10 and 12 years

3/4/4/5/5/6 balls of Cheval Blanc Comète (50 g / 130 m)
3mm (US 2 or 3) & 3.5 mm (US 4 ) needles
3.5mm (US 4/E) crochet hook
1 button
Tension/gauge in lace pattern: 24 sts x 36 rows = 10 x 10 cm
Tension/gauge alternating moss/seed st: 22 sts x 34 rows = 10 x 10 cm