{"slug":"sei-koyanagui","artist_id":"198bea3d-a223-4bca-95c3-f7a60d652927","canonical_slug":"sei-koyanagui","name":"Sei Koyanagui","built_at":"2026-11-02","categories":[{"bucket":"Paintings","lots_n":20,"sold_n":17,"median_price_usd_minor":93218,"record_price_usd_minor":601070,"record_basis":"premium","priced_lots_hammer_only":0,"priced_lots_unverified":2,"sell_through_pct":85,"last_sale_date":"2026-06-17","first_sale_year":1998},{"bucket":"Prints & Editions","lots_n":1,"sold_n":0,"median_price_usd_minor":null,"record_price_usd_minor":null,"record_basis":null,"priced_lots_hammer_only":0,"priced_lots_unverified":0,"sell_through_pct":0,"last_sale_date":null,"first_sale_year":2005},{"bucket":"Other","lots_n":4,"sold_n":4,"median_price_usd_minor":295848,"record_price_usd_minor":495261,"record_basis":"premium","priced_lots_hammer_only":0,"priced_lots_unverified":0,"sell_through_pct":null,"last_sale_date":"2026-10-22","first_sale_year":2011}],"sizes":[{"bucket":"Paintings","size_bucket":"medium","lots_n":15,"sold_n":12,"median_price_usd_minor":146689,"p25_price_usd_minor":61372,"p75_price_usd_minor":242890,"record_price_usd_minor":601070,"record_basis":"premium","priced_lots_hammer_only":0,"priced_lots_unverified":1,"last_sale_date":"2026-06-17"},{"bucket":"Paintings","size_bucket":"small","lots_n":5,"sold_n":5,"median_price_usd_minor":54502,"p25_price_usd_minor":45992,"p75_price_usd_minor":93218,"record_price_usd_minor":108886,"record_basis":"premium","priced_lots_hammer_only":0,"priced_lots_unverified":1,"last_sale_date":"2026-04-17"}],"notable":[{"bucket":"Paintings","year":"2021","total_price_usd":601070,"priced_basis":"premium"},{"bucket":"Paintings","year":"2015","total_price_usd":285630,"priced_basis":"premium"}],"last_sold":{"year":"2026","total_price_usd":495261,"priced_basis":"premium"},"upcoming_count":0,"content_modified":"2026-10-31","value_block_hash":"192558b4d918f266e7f48be18223ff478ef3c860","value":{"slug":"sei-koyanagui","name":"Sei Koyanagui","as_of":"2026-11-02","newest_result_date":"2026-10-22","results_total":21,"houses_total":11,"first_year":1998,"median_24m":{"usd_minor":86121,"p25_usd_minor":61372,"p75_usd_minor":128351,"n":7,"basis":"premium"},"record":{"title":"La volière","work_year":null,"usd_minor":601070,"basis":"premium","sale_year":2021,"sale_month":"2021-03","house_name":"Sotheby's","lot_id":"64b5a3c4-0a9d-4764-b7cd-ce749618ddd0"},"by_medium":[{"medium":"Paintings","n":17,"median_usd_minor":131500}],"by_size":[{"band":"Medium (50-120 cm)","n":13,"median_usd_minor":147816}],"methodology_url":"https://www.openingbid.art/methodology/price-data","top10":{"originals":[{"rank":1,"title":"La volière","work_year":null,"medium":"Oil on canvas","usd_minor":601070,"basis":"premium","house_name":"Sotheby's","sale_month":"2021-03","lot_id":"64b5a3c4-0a9d-4764-b7cd-ce749618ddd0"},{"rank":2,"title":"Pichet fleuri","work_year":"1930","medium":"Huile sur toile","usd_minor":495261,"basis":"premium","house_name":"Gros & Delettrez","sale_month":"2026-10","lot_id":"395c9c24-79dd-472b-b992-84e2dfe18b2b"},{"rank":3,"title":"Nu assis","work_year":null,"medium":"Huile sur toile","usd_minor":295848,"basis":"premium","house_name":"Ader","sale_month":"2011-06","lot_id":"5581573a-6b76-47b0-a2a7-5d117c7db93a"},{"rank":4,"title":"ROSES ET ANEMONES","work_year":null,"medium":"Oil on canvas","usd_minor":285630,"basis":"premium","house_name":"Cornette de Saint Cyr (Bonhams)","sale_month":"2015-07","lot_id":"bb53cc0d-4bcb-47ce-ac64-a3fa8b5d321e"},{"rank":5,"title":"ROSES ET LYS","work_year":null,"medium":"Oil on canvas","usd_minor":266559,"basis":"premium","house_name":"Cornette de Saint Cyr (Bonhams)","sale_month":"2015-07","lot_id":"973e8c17-1335-4c75-81f9-cfdf53ff6d91"},{"rank":6,"title":"Two Fawns","work_year":null,"medium":"Oil on canvas","usd_minor":235000,"basis":"premium","house_name":"Skinner (Bonhams Skinner)","sale_month":"2005-09","lot_id":"9d4254ab-d921-4164-9e17-39457d9b5309"},{"rank":7,"title":"Two Deer","work_year":null,"medium":"Oil on canvas","usd_minor":149500,"basis":"premium","house_name":"Skinner (Bonhams Skinner)","sale_month":"1998-05","lot_id":"1db36527-9b0a-47df-b109-24ba556c73aa"},{"rank":8,"title":"Bouquet de fleurs","work_year":null,"medium":"Huile sur toile","usd_minor":147816,"basis":"premium","house_name":"Ader","sale_month":"2026-04","lot_id":"3d0e2f6a-c069-4081-83b9-9dec06d313f4"},{"rank":9,"title":"Femme au bouquet de roses","work_year":"1930","medium":"Huile sur toile","usd_minor":145562,"basis":"premium","house_name":"Ader","sale_month":"2018-10","lot_id":"57f02176-14fe-46e5-9856-ba7aa1e42776"},{"rank":10,"title":"FLEURS ET PAPILLONS","work_year":"1896","medium":"Huile sur toile","usd_minor":131500,"basis":"premium","house_name":"Osenat","sale_month":"2012-03","lot_id":"2a795d49-d1e1-4e59-b48c-e52d7e11f517"}],"editions":[]},"paragraph":"As of 2 November 2026, OpeningBid has recorded 21 auction results for Sei Koyanagui at 11 houses since 1998. Over the last 24 months the median price was $861 including buyer’s premium (middle half $614–$1,284, n=7). The auction record is $6,011 for La volière (2021, Sotheby's). Source: OpeningBid, an independent auction-results database.","title":"Sei Koyanagui value: auction records & prices (updated Nov 2026)"}}