Magical items can be used multiple uses or have a continuous effect, unlike consumables (e.g. potions and spell scrolls) which are single use.

Sane Magical Item Prices was used as a starting point for pricing, but ongoing adjustments are being made to the pricing, and additional items continue to be added to the lists.

Source Books:
DMG – Dungeons and Dragons Dungeon Master’s Guide
FTD – Fizban’s Treasury of Dragons
GGR – Guildmasters’ Guide to Ravnica
MOT – Mythic Odyssey of Theros
PHB – Dungeon and Dragons Players Handbook, 5e
TCE – Tasha’s Cauldron of Everything
XGE – Xanathar’s Guide to Everything
WBW- The Wild Beyond the Witchlight