Add a chain

I've carefully selected these chains to complement the charms and pendants in my collection. They are high-quality manufactured chains.

Diamond-cut cable chains:
- 1mm thick
- 10k gold weighs approx. 1.15g
- 14k gold weighs approx. 1.24g
- sparkly finish, looks particularly nice with faceted stones

Rolo chains:
- sterling silver is 1.5mm thick
- 14k gold is 1.1mm thick
- 14k gold weighs approx. 1.5g
- round, smooth links for a classic and understated look