Due to the fact that someone edits my post and puts in their own prices without knowing the real, so i decidet to update my post. I will try to change the post on a regular basis if the prices are change.
I would like to add that for years i have been watching the prices of fansite items, also buying and selling by myself.
Prices depend on pvp and no pvp worlds. I give prices from pvp servers, mainly Antica. Mostly in this world, items are sold and bought. To some of them i will add an explanation of why the item is priced at a given amount.
Midnight Panther Doll 
500 KK Recently, one was sold at the char bazaar for 20 000 Tibia coins. There are very few panthers in the game and there is a lot of interest in this item due to its appearance. This item is very rarely put up for sale. Recently someone offered 22 000 Tibia coins for my panther.
Curnor's heart 
400KK - 450KK This is another desirable item that people are willing to pay a lot for. For example my friend. This item is very hard to win in competitions, because the fansite is popular and a lot of people take part on them. This item is rarely for sale, therefore the price is high.
Love Elixir 
200KK-250KK This is another item that was sold on the char market, was sold for 11 401 Tibia coins. Link to te auction here This item was introduced to the game recently. There are only a few of them.
Mathmaster Shield
Value around 350KK. This shield has not been for sale for a long time. It was sold at a char bazaar for 15,000 Tibia coins. You can see the auctions here. Even though a replica of it has been introduced, this item is very rare.
Adamant Shield 
Price for this shield has increased because it is rarely put up for sale. I have received several offers for this item from collectors. Value around 450-550KK. One was sold las time for 525KK.
Little Adventurer Doll 
There's only 3 in all Tibia. 2 in pvp servers and 1 in non pvp server. Recently the item was put up for sale on the forum. Link here. There was talk of the 700KK offer. Unfortunately, I don't know the final offer.
Bard Doll
It has recently been introduced to the game. Has been sold for 15 000 Tibia Coins. It's worth around 350KK.
Majestic Shield
I recently sold it for 95KK.
Epaminondas Doll 
It was sold for 3,500 Tibia coins. Auction here It's worth around 80KK-90KK.
Doll of Durin The Almighty 
I sold this doll to a collector for 70KK on Antica.
Black Knight Doll 
A friend of mine owns this item. He got several offers. Worth around 350KK.
Loremaster doll 
A very rare doll. Unfortunately, it can no longer be won in competitions. The item is also available as a replica. Due to its rarity, the price has risen to 350KK. Collectors are willing to pay the highest price.
Shield of Destiny 
Item sold frequently. Value around 250-300KK.
Mini NabBot
Price in the range of 100KK-150KK
Omniscient Owl
There are already quite a few available in the game. The price varies between 100KK-150KK.
Memory Box 
Very often this item can be won in contests on Tibiaevents, therefore its value has decreased significantly. Value up to 40KK.
Old Radio 
Has been sold for 5 000 TC [100-110KK] You can check the auctions here
* I would like to add that items with constant animation, for example like Midnight Panther, are worth more. The same goes for some items that are no longer available, such as Old Radio.
Items that are also available in fan page contests. I will add that the prices differ whether they are assigned to the character. More valuable are those that have no description (unwritten).
Trophy of Excellence:
Bronze 
Worth 5KK. Was sold on Antica. Check here.
Silver 
Worth 10KK.
Gold 
Sold for 15KK on Antica.
Golden Warrior Trophy 
I recently bought for 30kk. I suspect that others are going to be bought cheaper.
Other Items :
Grey Tome 
Several were sold at the market in Antica. Value 500KK-600KK.
Nightmare Doll 
Value 150-200 KK
Yellow Rose 
A few sold at the market in Antica. 150KK-250KK
Blue Sphere 
A few sold at the market in Antica. 60KK-80KK
Medals :
Royal Medal 
(unwritten) I recently bought Antica for 25kk. The written is cheaper.
Badge of Glory 
(written) Was sold for 15kk in Antica.
Heavy Medal 
(written) Sold in Kenora for 40KK Check post here.
TibiaQA.com is a fansite. Please note that the only official website is Tibia.com. The game Tibia and the website Tibia.com are copyrighted by CipSoft GmbH.
