If I happened to miss something in my price breakdown below, let me know and I'll research it.
All Streamborn Critters: 200g/each
All Bred Hybrids: 300g/each
All Frozen Event Eggs: 1k/each
Frozen @ 0%, 99.99% or100%: 10k/each
Dateless: Depends on creature, will research if it comes up... let's just leave these out of this thread for now
Event/Pond/Doni:
Spoiler
Amethyst Koi: 500g
Aurean Globefish: 2k
Charaen: 2k
Dragon Koi: 2k
Fabari: 100g
Goldfish: 2k
Lunar Koi: 5k
Ruby Koi: 2k
Solar Koi: 5k
* New Year
Arkai: 25k
Pale Arkai: 10k
All other Arkai: 5k
Chiolin: 5k
* Valentine's Day
Black Rose Imp: 60k
Krill: 1k
Lucinis Bird: 1k
Rosa Dove: 10k
All other Valentines: 5k
* Spring
Antelope Hare/Angora/Cacao/Snow Shoe Jackalope: 10k
Dismot: 10k
Duckit: 10k
All other Springs: 5k
* Pranking Day/April 1st
Oblivion Pillagebeast egg: 10k
Snow Dragon: 10k
All other Pranks: 5k
* Magiversary
Clostra Crystalwing: 15k
Saerulis Crystalwing: 10k
All other stream/shop Crystalwings: 5k
* Halloween
Aculeus: 25k
Calaveras Monkey: 1k
Chocolate Viyasant: 25k
Citellan (Flint & Oaxacan): 10k
Decessus (live or dead): 500g
Hollowjack: 1k
Keep Spider: 40k
Mohrior: 25k
Mortifelis (live or decaying): 500g
Osseo Arachnids: 1k
Pandorum: 10k
Thornweb Spider (red or blue): 1k
Tidal Wraithe: 10k
Tsaanguir: 10k
Xocomel: 25k
All other Halloweens: 5k
* Harvest
Brown Amagnae: 1k
Cibeus Crab: 10k
Domestic Amagnae: 10k
Olive Amagnae: 1k
Silver Amagnae: 1k
All other Harvests: 5k
* Solstice/Winter
Baublebees: 1k
Ilex Gecko: 1k
Giant Sylph - 10k
Pocket Sylph - 10k
Pyrix: 1k
Snopals: 500 gold
All other Winter Solstices: 5k
* Event and Item created
Rabbitsune: 5k
Chupareno: 8k
All other Events: 3k
Bred Event Prices
Black Rose Imp: 5k
Black Sarvain: 500g
Calaveras Monkey: 500g
Caramel Gryphon: 2k
Chocolate Viridis Crab: 500g
Citellan: 2k
Clostra Crystalwing: 500g
Duckit: 500g
Gold Horned Narwhal: 2k
Jackalope: 500g
Lapis Crystalwing: 500g
Lucinis Bird: 500g
Pandorum: 2k
Pink Mohlaris Elephant: 500g
Rosa Dove: 500g
Saerulis Crystalwing: 500g
Swirled Winged Cat: 2k
All other Bred Events: 1k
Coal Wrym - 200k
Diamond Wyrm - 250k
Eldritch Dragon - 250k
Holyhound - 200k
House Muris - 100k
Kollinus - 200k
Krampen Beest - 250k
Nadolig Corgerus - 200k
Nimikoolah - 100k
Ornamental Rockhopper Penguin - 40k
Ornamental Blue Penguin - 80k
Pine Vosmari - 100k
Prasinis Wyrm - 250k
Prismatic Crystalwing - 200k
Pteira Crystalwing - 300k
Blue/Green Crystalwing - 150k
Reindeer (Frigaes and Calidaes) - 300k
Sintervos - 250k
Sonerus Dragon (Golden & Bronze) - 50k
Tinsel Wyrm - 300k
White Elk (Chain & Bell) - 30k
Aurean Globefish: 2k
Charaen: 2k
Dragon Koi: 2k
Fabari: 100g
Goldfish: 2k
Lunar Koi: 5k
Ruby Koi: 2k
Solar Koi: 5k
* New Year
Arkai: 25k
Pale Arkai: 10k
All other Arkai: 5k
Chiolin: 5k
* Valentine's Day
Black Rose Imp: 60k
Krill: 1k
Lucinis Bird: 1k
Rosa Dove: 10k
All other Valentines: 5k
* Spring
Antelope Hare/Angora/Cacao/Snow Shoe Jackalope: 10k
Dismot: 10k
Duckit: 10k
All other Springs: 5k
* Pranking Day/April 1st
Oblivion Pillagebeast egg: 10k
Snow Dragon: 10k
All other Pranks: 5k
* Magiversary
Clostra Crystalwing: 15k
Saerulis Crystalwing: 10k
All other stream/shop Crystalwings: 5k
* Halloween
Aculeus: 25k
Calaveras Monkey: 1k
Chocolate Viyasant: 25k
Citellan (Flint & Oaxacan): 10k
Decessus (live or dead): 500g
Hollowjack: 1k
Keep Spider: 40k
Mohrior: 25k
Mortifelis (live or decaying): 500g
Osseo Arachnids: 1k
Pandorum: 10k
Thornweb Spider (red or blue): 1k
Tidal Wraithe: 10k
Tsaanguir: 10k
Xocomel: 25k
All other Halloweens: 5k
* Harvest
Brown Amagnae: 1k
Cibeus Crab: 10k
Domestic Amagnae: 10k
Olive Amagnae: 1k
Silver Amagnae: 1k
All other Harvests: 5k
* Solstice/Winter
Baublebees: 1k
Ilex Gecko: 1k
Giant Sylph - 10k
Pocket Sylph - 10k
Pyrix: 1k
Snopals: 500 gold
All other Winter Solstices: 5k
* Event and Item created
Rabbitsune: 5k
Chupareno: 8k
All other Events: 3k
Bred Event Prices
Black Rose Imp: 5k
Black Sarvain: 500g
Calaveras Monkey: 500g
Caramel Gryphon: 2k
Chocolate Viridis Crab: 500g
Citellan: 2k
Clostra Crystalwing: 500g
Duckit: 500g
Gold Horned Narwhal: 2k
Jackalope: 500g
Lapis Crystalwing: 500g
Lucinis Bird: 500g
Pandorum: 2k
Pink Mohlaris Elephant: 500g
Rosa Dove: 500g
Saerulis Crystalwing: 500g
Swirled Winged Cat: 2k
All other Bred Events: 1k
Coal Wrym - 200k
Diamond Wyrm - 250k
Eldritch Dragon - 250k
Holyhound - 200k
House Muris - 100k
Kollinus - 200k
Krampen Beest - 250k
Nadolig Corgerus - 200k
Nimikoolah - 100k
Ornamental Rockhopper Penguin - 40k
Ornamental Blue Penguin - 80k
Pine Vosmari - 100k
Prasinis Wyrm - 250k
Prismatic Crystalwing - 200k
Pteira Crystalwing - 300k
Blue/Green Crystalwing - 150k
Reindeer (Frigaes and Calidaes) - 300k
Sintervos - 250k
Sonerus Dragon (Golden & Bronze) - 50k
Tinsel Wyrm - 300k
White Elk (Chain & Bell) - 30k