one cabochon 13 x 18mm
 a pendant holder for a 13 x 18mm cabochon
 a star pendant
 mounted beads
 un pendentif serti
 3mm rings
 of the chain
 of the extension chain
 a clasp

 pliers for jewellery creations 
 UHU glue

This necklace is very easy to make...

To begin, stick the cabochon in its holder and wait for it to dry completely before handling it.

Then cut the chain to the length of your choice, here we have made a 50cm necklace to fit over the chest.

Then, in the centre of the chain, connect the cabochon pendant with a 3mm ring. This will fix the pendant between 2 balls on the chain and prevent it from sliding.

Thread the 3 beads onto a 3mm ring and close it. Open a new ring to connect the mounted beads to the chain.

Mount the set pendant and star with 3mm rings.

At the ends, place the clasp with a 3mm ring on one side and 3cm of extension chain with a 3mm ring on the other. If necessary, use a reamer to widen the chain links to make it easier for the rings to pass through.

Et voilà! Beautiful creation!