The gem catalog covers every cut gem Blizzard ships in the live game data, plus every uncut raw gem that feeds the jewelcrafting profession. The subclass column distinguishes red, blue, yellow, green, orange, purple, and meta gems, plus the prismatic and rare-quality variants. Each entry shows the gem's name, item level, required level, and quality tier.
Click any gem to open the price-history page. Current minimum buyout, average and median sale price, and total quantity listed all appear there. The history chart matters more for gems than almost any other category because gem prices respond directly to raid reset and high-end PvE content. A new expansion patch invalidates last expansion's gems entirely; the chart catches that transition cleanly.
Toggle between Retail, MoP Classic, TBC Classic, and Season of Discovery at the top of the page to compare the same gem across game versions where applicable. The gem and socket system arrived in The Burning Crusade, so the catalog is richest on Retail, MoP Classic, and TBC Classic; the vanilla-era Season of Discovery predates sockets and carries no gems. The realm dropdown switches the displayed prices to a different server. Pricing for Retail refreshes hourly via the Blizzard auction-house API; pricing for MoP Classic refreshes weekly and TBC Classic refreshes hourly via TradeSkillMaster.
If you're sourcing a specific cut by name, the search box on the main item-database page narrows fast. The subcategory sidebar drills into the per-colour gem lists. Every gem listing links to its in-game auction-house entry so you can move from research to purchase quickly. Gems are a regulated, family-friendly trade good — the catalog publishes prices for informational use only, and BootyBayBroker takes no position on what you do in-game with the data.