{"current_listings":[{"buy_url":"https://birkinbagstock.com/go/madison-avenue-H-K-250422-3","currency":"USD","detail_url":"https://birkinbagstock.com/listing/madison-avenue-H-K-250422-3","id":"madison-avenue-H-K-250422-3","merchant":"Madison Avenue Couture","price":20500,"title":"Herm\u00e8s Pre-owned Hermes Special Order (HSS) Kellygraphie Kelly Sellier 28 \"Lettre B\" Bleu Nuit Epsom Permabrass Hardware"},{"buy_url":"https://birkinbagstock.com/go/madison-avenue-H-K-260706-4-DD","currency":"USD","detail_url":"https://birkinbagstock.com/listing/madison-avenue-H-K-260706-4-DD","id":"madison-avenue-H-K-260706-4-DD","merchant":"Madison Avenue Couture","price":21500,"title":"Herm\u00e8s Pre-owned Hermes Kelly Retourne 28 Bleu Nuit Togo Gold Hardware"},{"buy_url":"https://birkinbagstock.com/go/madison-avenue-H-K-260721-1","currency":"USD","detail_url":"https://birkinbagstock.com/listing/madison-avenue-H-K-260721-1","id":"madison-avenue-H-K-260721-1","merchant":"Madison Avenue Couture","price":21500,"title":"Herm\u00e8s Pre-owned Hermes Kelly Retourne 28 Bleu Nuit Togo Gold Hardware"},{"buy_url":"https://birkinbagstock.com/go/janefinds-10491916747055","currency":"USD","detail_url":"https://birkinbagstock.com/listing/janefinds-10491916747055","id":"janefinds-10491916747055","merchant":"JaneFinds","price":24500,"title":"Herm\u00e8s Kelly 28 Retourne Touch Bleu Nuit Togo and Bleu Marine Alligator Palladium Hardware"},{"buy_url":"https://birkinbagstock.com/go/madison-avenue-H-K-260727-5-RR","currency":"USD","detail_url":"https://birkinbagstock.com/listing/madison-avenue-H-K-260727-5-RR","id":"madison-avenue-H-K-260727-5-RR","merchant":"Madison Avenue Couture","price":78500,"title":"Hermes Kelly Retourne 28 Bleu Nuit Satin Matte Porosus Crocodile Gold Hardware"}],"data_url":"https://birkinbagstock.com/data/price-history/kelly-28-bleu-nuit.json","filters":{"color":"Bleu Nuit","size":28,"sort":"newest","style":"kelly"},"generated_at":"2026-09-04T08:48:59.649049+00:00","history":{"change":0,"change_label":"$0","change_pct":0.0,"current_listings":5,"data_url":"/data/price-history/kelly-28-bleu-nuit.json","direction":"flat","events":[],"first_date":"2026-09-04","first_median_price":21500,"first_median_price_label":"$21,500","history":[{"date":"2026-09-04","day":"20260904","max_price":78500,"max_price_label":"$78,500","median_price":21500,"median_price_label":"$21,500","min_price":20500,"min_price_label":"$20,500","sample":5}],"history_url":"/price-history/kelly-28-bleu-nuit","label":"Birkin 28 Bleu Nuit","last_date":"2026-09-04","last_median_price":21500,"last_median_price_label":"$21,500","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":5,"slug":"kelly-28-bleu-nuit","status":"one_point","summary":"Birkin 28 Bleu Nuit median first captured at $21,500 on 2026-09-04."},"license":"Public citation dataset. Attribute BirkinBagStock.com and verify merchant prices before purchase.","slug":"kelly-28-bleu-nuit","source":"BirkinBagStock.com","title":"Kelly 28 Bleu Nuit \u2014 Live Inventory Across Verified Resellers","url":"https://birkinbagstock.com/price-history/kelly-28-bleu-nuit"}