{"current_listings":[{"buy_url":"https://birkinbagstock.com/go/fp-1803117","currency":"USD","detail_url":"https://birkinbagstock.com/listing/fp-1803117","id":"fp-1803117","merchant":"Fashionphile","price":13245,"title":"Herm\u00e8s Swift Constance 18 Gris Perle"},{"buy_url":"https://birkinbagstock.com/go/fp-1846205","currency":"USD","detail_url":"https://birkinbagstock.com/listing/fp-1846205","id":"fp-1846205","merchant":"Fashionphile","price":13295,"title":"Herm\u00e8s Chevre Mysore Constance 18 Gris Perle"},{"buy_url":"https://birkinbagstock.com/go/madison-avenue-H-C-250520-1-RT","currency":"USD","detail_url":"https://birkinbagstock.com/listing/madison-avenue-H-C-250520-1-RT","id":"madison-avenue-H-C-250520-1-RT","merchant":"Madison Avenue Couture","price":34500,"title":"Hermes Constance 18 Gris Perle Matte Alligator Palladium Hardware"},{"buy_url":"https://birkinbagstock.com/go/fp-1913554","currency":"USD","detail_url":"https://birkinbagstock.com/listing/fp-1913554","id":"fp-1913554","merchant":"Fashionphile","price":9355,"title":"Herm\u00e8s Swift Constance 18 Gris Perle"},{"buy_url":"https://birkinbagstock.com/go/fp-1923607","currency":"USD","detail_url":"https://birkinbagstock.com/listing/fp-1923607","id":"fp-1923607","merchant":"Fashionphile","price":8545,"title":"Herm\u00e8s Evercolor Constance 18 Gris Perle"}],"data_url":"https://birkinbagstock.com/data/price-history/constance-18-gris-perle.json","filters":{"color":"Gris Perle","size":18,"sort":"newest","style":"constance"},"generated_at":"2026-09-05T10:35:53.291399+00:00","history":{"change":0,"change_label":"$0","change_pct":0.0,"current_listings":5,"data_url":"/data/price-history/constance-18-gris-perle.json","direction":"flat","events":[],"first_date":"2026-09-05","first_median_price":13245,"first_median_price_label":"$13,245","history":[{"date":"2026-09-05","day":"20260905","max_price":34500,"max_price_label":"$34,500","median_price":13245,"median_price_label":"$13,245","min_price":8545,"min_price_label":"$8,545","sample":5}],"history_url":"/price-history/constance-18-gris-perle","label":"Birkin 18 Gris Perle","last_date":"2026-09-05","last_median_price":13245,"last_median_price_label":"$13,245","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":"constance-18-gris-perle","status":"one_point","summary":"Birkin 18 Gris Perle median first captured at $13,245 on 2026-09-05."},"license":"Public citation dataset. Attribute BirkinBagStock.com and verify merchant prices before purchase.","slug":"constance-18-gris-perle","source":"BirkinBagStock.com","title":"Constance 18 Gris Perle \u2014 Live Inventory Across Verified Resellers","url":"https://birkinbagstock.com/price-history/constance-18-gris-perle"}