Goldfish
$0.29
Estimated value as of 2026 · PetSmart retail prices for common Comet Goldfish[4]
A goldfish is a small, colorful freshwater fish commonly kept as a low-maintenance pet in aquariums or bowls.
Fun fact Common feeder goldfish like Comets can be purchased for as little as $0.10 to $1.00, making them one of the cheapest pets available[6].
goldfishpet-fishaquariumcommon-feederlive-animal
More in Nature
$31.8M
Fossil Tyrannosaurus Rex Skeleton (Stan)
Nearly complete T-Rex skeleton auctioned for research and display.
$27 million
Californium-252 (per gram)
Rare synthetic element produced in nuclear reactors, the rarest element in practical use.
$5M
Moon Rock Sample (From Apollo 17 Mission)
Lunar basalt specimen collected during humanity's final Apollo mission in 1972.
$350M
Hope Diamond
A 45.52-carat deep blue diamond with a legendary curse.