Thank you very much rhiannon223!!!
1. Fake
2. Looks ok at first glance but there aren't enough pictures to be absolutely sure
3. Authentic
4. Authentic
5. Looks good but would like to see the base of the clasp
6. Authentic
Looks authentic but the seller states the weight to be 48.2 grams which is way too light for a toggle necklace. Maybe worth emailing the seller about that as I think that could be a mistake.