{"type":"firestarter.listing","listing":{"id":"lst_JgU_bvDK","product_name":"1.39ct Pear Lab Grown Diamond (Colour Fancy Vivid Blue, Clarity VS1, Cut VG, Uncertified)","category":"diamond","description":"\n    Type: Lab Grown Diamond\nShape: Pear\nCarat: 1.39\nColour: Blue\nIntensity: Fancy Vivid\nClarity: VS1\nCut: Very Good\nPolish: Excellent\nSymmetry: Very Good\nFluorescence: None\nMeasurements: 9.85x6.2x3.49mm\nL/W Ratio: 1.59\nTable: 59.65%\nDepth: 56.22%\nCertificate: Uncertified\nCertificate Number: B20C3F8983\n  ","images":["https://cdn.shopify.com/s/files/1/1994/1391/files/1.39ct_Pear_Lab_Grown_Diamond_Colour_Fancy_Vivid_Blue_Clarity_VS1_Cut_VG_Uncertified.webp?v=1783439907"],"price":867,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-07-07T23:45:50.287Z"},"share_url":"https://firestarter.network/l/lst_JgU_bvDK","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_JgU_bvDK' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy 1.39ct Pear Lab Grown Diamond (Colour Fancy Vivid Blue, Clarity VS1, Cut VG, Uncertified)' and a budget_max comfortably above $867.00 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."]}}