Retail price
Retail price is what a brand or authorized retailer asks for a new item. It can be useful evidence for a current product with little secondary-market activity. It does not automatically describe what a used item will sell for.
Active asking price
An active ask is the price a seller currently wants. It shows available supply and seller expectations. It does not confirm that a buyer accepted the price. Several identical asks from one marketplace also do not provide the same confidence as agreement across independent sellers.
Completed sale price
A completed sale records a transaction, making it valuable evidence of buyer behavior. The comparison still needs to match the same product and compatible variant. Condition, size, included accessories, timing, and marketplace fees can explain meaningful differences.
Estimated market value
An estimated market value combines eligible public evidence for the exact piece into a range and midpoint. Strong estimates use multiple independent sources that agree. A single exact source can still support a low-confidence estimate when that is the only credible evidence available.
Net resale proceeds
Net proceeds are what remains after the sale price is reduced by platform fees, payment fees, shipping, insurance, authentication, returns, or taxes that apply to the transaction. Net proceeds, not the headline listing price, determine realized profit or loss.
Why exact matching matters
Broad search terms can produce convincing but incorrect prices. A search for “Miu Miu hat” may mix beanies, bucket hats, straw hats, cowboy hats, and baseball caps. An exact record should lock the product form, model, material, color, and other distinctive variant information before prices are compared.
What to do when sources disagree
First check whether the sources describe the same variant. Remove unavailable listings, accessories, replicas, damaged items, and obvious errors. Then look for clusters rather than averaging every number. If two credible ranges remain far apart, the honest result is “needs review,” not a midpoint between unrelated markets.
What an estimate cannot tell you
A market estimate is not an appraisal, authentication opinion, financial advice, or guarantee of sale. It is a structured reading of available public evidence at a point in time. Pieces shows estimates for informational collection tracking and may update them as evidence changes.