Butter London The Old Bill is the truest copper colour. It's not overly warm or too cool. It's rose gold without being too pink. It has a metallic finish with fine sparkles that are more apparent in direct sun. I'm wearing it in this picture.
Julep Soleil has a more frosted, metallic finish. It's a bit more rose silver in certain lights. I love Julep's thick formula. Since it is reminiscent of frosted polishes, you do have to be a little more careful when applying to avoid streaks.
Essie Penny Talk is a cult favourite. It's a great one that's easily available in drugstores. It leans a little cooler and more pink. It has a metallic finish. See it in a gradient here.
Any other rose gold polishes I must try? Leave it in the comments!