My Picot Edge Coaster is crocheted in 4 rounds and works up nice and quickly!
This one is worked in Lion Brand 24/7 Cotton® Yarn, worsted weight, with a 4.00 mm hook.
It measures exactly 5 inches or 12.5 cm across:
sc = UK dc
tr = UK dtr
Round 1: Make a magic ring (see how to crochet the magic ring here.)
Ch 4; work 15 tr into the ring.
Tighten ring gently, ensuring the stitches look neat; ss into top of 4 ch.
Round 2: I don't chain one at the start of this round by the way, to keep things neat :)
So: sc into space between 4 ch and 1st tr of previous round:
(Ch 4, sc in between next 2 stitches) 15 times, working your last sc between the last tr and the 4 ch.
Ch 4, ss into 1st sc. (16 loops worked.)
Round 3: ss into 1st 4-ch loop; ch 1. (sc, ch 3, sc) into same loop.
(sc, ch 3, sc) into each of next 15 loops.
Join with a ss into 1st sc.
Round 4: Ss into 1st 3-ch loop, ch 1, sc into same loop.
(ch 6; ss into 6th ch from hook; ch 2, sc into next 3-ch loop) 15 times.
Last picot: ch 6, ss into 6th ch from hook; ch 2, ss into 1st sc.
Now weave in your ends, working the tail end down the back to the center of the piece so that I can sew it in more easily; then make sure your starting end from the magic ring is sewn in securely around the middle too.