Gold Necklace Polishing

I would like to pay for someone to teach me how to make gold necklaces shine and give them a champagne gold look. The necklaces currently have a dull, dark finish. I would like to know the settings to use to acheive this.

Requirements:
- Experience in polishing gold jewellery
- Ability to work with necklaces
- Attention to detail to achieve a champagne gold appearance

Ideal Skills:
- Professional polishing techniques
- Knowledge of gold properties and care