{"type":"firestarter.listing","listing":{"id":"lst_yCdN-tgF","product_name":"2.25ct Round Lab Grown Diamond (Colour D, Clarity VVS1, Cut EX, IGI Certified)","category":"diamond","description":"\n    Type: Lab Grown Diamond\nShape: Round\nCarat: 2.25\nColour: D\nClarity: VVS1\nCut: Excellent\nPolish: Excellent\nSymmetry: Excellent\nFluorescence: None\nMeasurements: 8.27x8.34x5.24mm\nL/W Ratio: 0.99\nTable: 58%\nDepth: 63%\nCertificate: IGI\nCertificate Number: LG715569109\nCertificate PDF: View\n\n  ","images":["https://cdn.shopify.com/s/files/1/1994/1391/files/2.25ct_Round_Lab_Grown_Diamond_Colour_D_Clarity_VVS1_Cut_EX_IGI_Certified.webp?v=1782756543"],"price":1628,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-07-03T11:45:32.799Z"},"share_url":"https://firestarter.network/l/lst_yCdN-tgF","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_yCdN-tgF' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy 2.25ct Round Lab Grown Diamond (Colour D, Clarity VVS1, Cut EX, IGI Certified)' and a budget_max comfortably above $1628.00 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."]}}