This is a jewelry piece I'm quite pleased with. I'm fairly certain that I adapted this from a pattern I found online but I can't find it. If this is your pattern then please message me so I can link the original. 

The original came up quite large for a necklace so I made a smaller version.

(Please note I use US terms)

I use puppets thread for this. (It's my favourite crochet yarn!)

Pretty Heart Pattern

Chain 12

Sc in second chain from hook and in each stitch across. Ch 1. Turn (11sc)

Continue for another 6 rows. (it needs to form a square shape

Once a square is formed, find the middle of it and Qc 10 stitches into this middle stitch, slip stitch into the end of square.

Find the middle on the other side, 10 Qc into the middle stitch, sl st into end of square.

Fasten off.

QC = yarn over three times , pull up a loop (5 loops on hook) yarn over, pull through two loops, yarn over, pull through two loops, yarn over, pull through two loops, yarn over, pull through last two loops. 

I made two hearts and crocheted them together using a slip stitch.