Crocheting a necklace with beads using thread or cord is a creative endeavor that isn't hard according to Rosie Writes; she is a writer at HubPages. She says if you don't crochet, just practice making a chain. It's the initial thing to learn in crocheting. After that, you can learn to make a beaded crochet neckline.
When you read her article, you'll find complete instructions to get you going.
Rosie's Beaded Necklace Article
Knitting As Art by Deltachord