Prepare all materials and tools that you needed for making crocheted lotus flower brooch. It is yarn - pink, yellow, green, crochet hook, scissors, needle, base for brooch and white beads.Make green part. Make 4 chain (ch), in 4th loop from the hook make 11 double crochet (dc), 1 sl st in 3rd ch.Click next pic for pattern . 
Make 12 ch, in second ch from the hook make 1 single crochet (sc), in next ch make sequence - 1 dc, 1 treble crochet (tr)*7, 1 dc, 1 sc, in next 2 tops of dc make 1 slip stitch (sl st).
Repeat around, 1 sl st in last top of dc.
Make on the edge of petal the sequence - 1 sc, 1 dc, 1 tr*7, 1 dc, 1 sc.
Make 1 sl st in each of space between of dc, until the base of petal.
Repeat it in next 5 petals.
Make 4 ch, 11 dc in 4th loop from the hook, 1 sl st in 3rd ch. Make 12 ch, 1 sc, 1 half double crochet (hdc), 2 dc, 3 tr, 2 dc, 1 hdc, 1 sc, 1 sl st. Repeat it 5 times yet.
In next row make in each petal - 1 sc, 1 hdc, 2 dc, 3 tr, 2 dc, 1 hdc, 1 sc, 1 sl st. Make 1 sl st in each of space between of dc, until the base of petal. Repeat it 5 times yet.
In second pink part in each petal make 10 ch instead 12, skip 1 ch, in each of next 9 ch make sequence - 1 sc, 1 hdc, 1 dc, 1 tr*3, 1 dc, 1 hdc, 1 sc, 1 sl st. In next row make in each petal - 1 sc, 1 hdc, 2 dc, 3 tr, 2 dc, 1 hdc, 1 sc, 1 sl st. Make 1 sl st in each of space between of dc, until the base of petal. Repeat it 5 times yet.
It is three part of future flower broch.
Take little pink part of flower. Take yellow yarn, insert hook under dc in the middle, 1 sl st.
Make 7 ch, 1 sl st under next dc, repeat it around.
Sew white beads to little pink part of flower.
Sew all 3 parts.
Take green yarn, make 2 ch, 6 sc in second ch from the hook, 1 sl st in the first sc. In next row make 1 ch, 2 sc in each of next 6 loops, 1 sl st in the first sc. In 3rd row make 1 ch, (2 sc, 1 sc) - repeat around, 1 sl st in the first sc.
In next row make 1 ch, (2 sc, 1 sc*2), repeat around. In themiddle fix base for brooch, at the end make 1 sl st in the first sc.
Sew green part with base for brooch to flower.
Final Result
Crocheted Lotus Flower Brooch (19 steps + written pattern) by guidecentral