Here’s a video of Part Three of a test where the test-taker got … wait for it … IELTS 9. Wouldn’t it be great to get that? Listen to the video.
Under the video I’ve copied and pasted the comments from the IELTS website which explains why she got a 9.
This test taker speaks fluently, with only rare repetition or self-correction. Any hesitation is not to search for language but to think of ideas. Her speech is coherent, with fully appropriate cohesive features (if you’re talking about; other than that; I think it’s more; as you can see).
She uses vocabulary with full flexibility and precision in
all topics with a wide range of idiomatic language (have a tendency; be exposed to; the world is becoming more globalised; the norm; strikes a chord; communication tool; actors that sponsor; materialistically; cool gadgets; grasp of people’s mindset).
Her grammatical structures are precise and accurate at all times. She uses a full and natural range of structures and sentence types and makes no noticeable errors.
She uses a full range of phonological features with precision and subtlety. The rhythm of her language is sustained throughout and stress and intonation are invariably used to good effect. This and her very clear production of individual words and sounds result in her being effortless to understand.