If you want to make one you will need: You will not need the whole pack of any of them.
1 Metres Side Twist Chain, Lead Free & Nickel Free, Golden Color Size: Links: about 5mm long, 4mm wide, 0.9mm thick. £1
Golden jump rings I used some from this pack:
Spend less than £10 and you will have enough left to make another necklace. Perhaps not an identical one but a similar one.