{"type":"firestarter.listing","listing":{"id":"lst_KJvug0sC","product_name":"2.00ct Round Lab Grown Diamond (Colour E, Clarity VVS2, Cut EX, GIA Certified)","category":"diamond","description":"\n    Type: Lab Grown Diamond\nShape: Round\nCarat: 2.00\nColour: E\nClarity: VVS2\nCut: Excellent\nPolish: Excellent\nSymmetry: Excellent\nFluorescence: None\nMeasurements: 8.12x8.1x5.01mm\nL/W Ratio: 1\nTable: 55%\nDepth: 61.8%\nCertificate: GIA\nCertificate Number: 2537287702\nCertificate PDF: View\n\n  ","images":["https://cdn.shopify.com/s/files/1/1994/1391/files/2.00ct_Round_Lab_Grown_Diamond_Colour_E_Clarity_VVS2_Cut_EX_GIA_Certified.webp?v=1775372217"],"price":3249,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:45:31.231Z"},"share_url":"https://firestarter.network/l/lst_KJvug0sC","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_KJvug0sC' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy 2.00ct Round Lab Grown Diamond (Colour E, Clarity VVS2, Cut EX, GIA Certified)' and a budget_max comfortably above $3249.00 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."]}}