{"current_listings":[{"buy_url":"https://birkinbagstock.com/go/the-purse-affair-18876","currency":"USD","detail_url":"https://birkinbagstock.com/listing/the-purse-affair-18876","id":"the-purse-affair-18876","merchant":"The Purse Affair","price":9812,"title":"Hermes Constance 18 Epsom Rouge Casaque A Stamp"},{"buy_url":"https://birkinbagstock.com/go/my-gemma-156653","currency":"USD","detail_url":"https://birkinbagstock.com/listing/my-gemma-156653","id":"my-gemma-156653","merchant":"My Gemma","price":9200,"title":"Herm\u00e8s Rouge Casaque Swift Constance 18 GHW"},{"buy_url":"https://birkinbagstock.com/go/luxe-du-jour-1338095","currency":"USD","detail_url":"https://birkinbagstock.com/listing/luxe-du-jour-1338095","id":"luxe-du-jour-1338095","merchant":"Luxe Du Jour","price":7575,"title":"Hermes Rouge Casaque Swift Constance 18"}],"data_url":"https://birkinbagstock.com/data/price-history/constance-18-rouge-casaque.json","filters":{"color":"Rouge Casaque","size":18,"sort":"newest","style":"constance"},"generated_at":"2026-09-30T06:55:43.672746+00:00","history":{"change":0,"change_label":"$0","change_pct":0.0,"current_listings":3,"data_url":"/data/price-history/constance-18-rouge-casaque.json","direction":"flat","events":[],"first_date":"2026-09-30","first_median_price":9200,"first_median_price_label":"$9,200","history":[{"date":"2026-09-30","day":"20260930","max_price":9812,"max_price_label":"$9,812","median_price":9200,"median_price_label":"$9,200","min_price":7575,"min_price_label":"$7,575","sample":3}],"history_url":"/price-history/constance-18-rouge-casaque","label":"Birkin 18 Rouge Casaque","last_date":"2026-09-30","last_median_price":9200,"last_median_price_label":"$9,200","methodology":"Spec history uses daily captured prices for the current visible cohort of live listings. The median series is descriptive asking-price intelligence, not an appraisal or completed-sale index.","observations":1,"sample_listings":3,"slug":"constance-18-rouge-casaque","status":"one_point","summary":"Birkin 18 Rouge Casaque median first captured at $9,200 on 2026-09-30."},"license":"Public citation dataset. Attribute BirkinBagStock.com and verify merchant prices before purchase.","slug":"constance-18-rouge-casaque","source":"BirkinBagStock.com","title":"Constance 18 Rouge Casaque \u2014 Live Inventory Across Verified Resellers","url":"https://birkinbagstock.com/price-history/constance-18-rouge-casaque"}