{"type":"firestarter.listing","listing":{"id":"lst_rlsMR6Au","product_name":"1.61ct Oval Lab Grown Diamond (Colour E, Clarity VVS1, Cut EX, GIA Certified)","category":"diamond","description":"\n    Type: Lab Grown Diamond\nShape: Oval\nCarat: 1.61\nColour: E\nClarity: VVS1\nCut: Excellent\nPolish: Excellent\nSymmetry: Excellent\nFluorescence: None\nMeasurements: 9.5x6.66x4.14mm\nL/W Ratio: 1.43\nTable: 58%\nDepth: 62.1%\nCertificate: GIA\nCertificate Number: 6505213438\nCertificate PDF: View\n\n  ","images":["https://cdn.shopify.com/s/files/1/1994/1391/files/1.61ct_Oval_Lab_Grown_Diamond_Colour_E_Clarity_VVS1_Cut_EX_GIA_Certified.webp?v=1782686250"],"price":2030,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-07-03T11:45:32.803Z"},"share_url":"https://firestarter.network/l/lst_rlsMR6Au","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_rlsMR6Au' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy 1.61ct Oval Lab Grown Diamond (Colour E, Clarity VVS1, Cut EX, GIA Certified)' and a budget_max comfortably above $2030.00 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."]}}