HELP: Why do I have a 61% score for "% of total links, external + follow"?

[SamCitron]

Firstly, I understand what this percentage is. It's the ratio of external links that are "follow" -> compared to the links that are "no-follow".

Four questions:

1. This is definitely not accurate! I have loads of no-follow links

2. Does anyone have ideas or techniques to add more healthy no-follow links?

3. Am I completely misunderstanding this?

4. Will this high score negatively affect my ranking?

I could definitely use some help. Thanks so much in advance.

I don't think my website address should help, but if you need it for context, it's estatediamondjewely.com.