Pandora has become one of my things I love to collect. I have slowly been learning about authenticity and that there are some extremely good guides on Ebay and different sites online.
Sadly I have found that some sellers are listing Charms as retired and hard to find but are actually still available through Pandora stores and are current charms.
One being the strawberry : No.790112 Silver charm – strawberry which is for sale for $35 in any Pandora store
Another is the pig: No.790214 Silver charm – pig again for sale $35 in a Pandora Store
Also The Dice: No.790116 Silver charm - dice available for $35 in any Pandora Store
The Hippo. No. 790334 Silver charm – hippopotamus retails once again for $35
The Porcupine No.790333 Silver charm – porcupine $35 Rrp
Always check the Pandora website for pricing and retired charms so you know what you are purchasing if charms are retired here in Australia as well as The United States, Canada and most other countries then indeed rarity and prices will be high.
I believe if items are available for sale in Australian stores it is fradulent to list on an Australian site and sell them as rare and charge $90 +++++ for a $35 item.
There are other good sites regarding authenticity on line if you do Google searches.