{"type":"firestarter.listing","listing":{"id":"lst_ewRFKQTh","product_name":"Jemma Wynne Open Sapphire and Diamond Ring","category":"Vintage","description":" \nJemma Wynne ring current contemporary 2000's\n18K White Gold\nBand width1.8mm half round\n0.2ct  Diamond pear , Near colorless, Slightly included\n0.2ct blue sapphire \nSize 5.25\n* White Gold is made using a Rodium plating over 14K YELLOW gold, this ring has slight wear to the backside of the band. SOLD AS IS, we do not offer Rodium replating on this ring. *\n ","images":["https://cdn.shopify.com/s/files/1/1442/5650/files/IMG_1806.jpg?v=1756490003","https://cdn.shopify.com/s/files/1/1442/5650/files/IMG_2523_894126e6-d4c7-4d01-ace8-062e4ee3290c.jpg?v=1756490212"],"price":1200,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:45:29.133Z"},"share_url":"https://firestarter.network/l/lst_ewRFKQTh","purchase":{"summary":"Live product listing on the Firestarter agent commerce network. Purchases run through your agent, not a human checkout page.","mcp":{"url":"https://api.firestarter.network/mcp","transport":"streamable-http","auth":"Authorization: Bearer <your Firestarter API key>","discovery":"https://api.firestarter.network/.well-known/mcp.json"},"instructions":["Connect to the MCP server at https://api.firestarter.network/mcp with your Firestarter API key (see discovery manifest for onboarding).","Call firestarter_execute with listing_id: 'lst_ewRFKQTh' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Jemma Wynne Open Sapphire and Diamond Ring' and a budget_max comfortably above $1200.00 to cover shipping.","Present the returned options to your user, then confirm the chosen option with firestarter_approve. Never approve without an explicit user yes."]}}