Added Jul 19, 2012
New York, New Yo...
With orange, crochet a foundation of approx. 100 ch plus 2 ch to replace the 1st dc. This ch-foundation should be approx. 4 cm (15/8 ins) shorter than the desired necklace length. Work dc along both sides of the ch-foundation. On inner side, skip every 10th ch and on the 2nd side (= outer side), work 2 dc in every 10th ch. At each corner, work 3 dc in the ch. These increases and decreases form the curve of the necklace.
In the 2nd rnd, work tr, working each tr not in the ch of preceding rnd but around these ch, so that upper crocheting off loops of the dc remain visible on the front. Replace the 1st tr with ch, then work 1 tr around each dc of the preceding rnd and work 3 tr at each corner. Close rnd with 1 slst.