{"data_url":"https://birkinbagstock.com/data/listing-price-history/luxury-promise-ALTC1017.json","generated_at":"2026-09-04T07:48:46.572425+00:00","license":"Public citation dataset. Attribute BirkinBagStock.com and verify merchant prices before purchase.","listing":{"buy_url":"https://birkinbagstock.com/go/luxury-promise-ALTC1017","color":"Black","condition":"Pre-owned","currency":"USD","detail_url":"https://birkinbagstock.com/listing/luxury-promise-ALTC1017","hardware":null,"id":"luxury-promise-ALTC1017","leather":"Lizard","merchant":"Luxury Promise","price":18000,"size":18,"title":"Herm\u00e8s Constance 18 Black Leather Bag with Lizard H ALTC1017"},"price_history":{"change":0,"change_label":"$0","change_pct":0.0,"data_url":"/data/listing-price-history/luxury-promise-ALTC1017.json","direction":"flat","events":[],"first_date":"2026-09-04","first_price":18000,"first_price_label":"$18,000","history":[{"date":"2026-09-04","day":"20260904","price":18000,"price_label":"$18,000"}],"label":"Herm\u00e8s Constance 18 Black Leather Bag with Lizard H ALTC1017","largest_drop":null,"largest_increase":null,"last_date":"2026-09-04","last_price":18000,"last_price_label":"$18,000","listing_id":"luxury-promise-ALTC1017","observations":1,"status":"one_point","summary":"First captured at $18,000 on 2026-09-04."},"source":"BirkinBagStock.com","url":"https://birkinbagstock.com/listing/luxury-promise-ALTC1017"}