{"type":"firestarter.listing","listing":{"id":"lst_JReGZTLt","product_name":"3ct Radiant Cut Lab Diamond Cathedral Ring","category":"Rings","description":"A classic yet unique look, this radiant cut lab-created diamond sits in a timeless bezel setting with a cathedral so it perfectly nests with almost any band. Crafted from solid recycled 14k gold or 950 platinum, this stunning and durable piece makes an excellent engagement or statement ring.\nStyle Tip: We love stacking this ring with our classic 3mm industrial mirror band.\nWe can customize this ring with any design and any natural or lab-created stone. Contact us for a custom piece.\nNeed help deciding between Platinum and White Gold? Check out our blog!","images":["https://cdn.shopify.com/s/files/1/2065/2103/files/yellow-gold-radiant-cut-diamond-ring_2.jpg?v=1764373450","https://cdn.shopify.com/s/files/1/2065/2103/files/radiant-cut-diamond-engagement-ring-14k_1.jpg?v=1764373450","https://cdn.shopify.com/s/files/1/2065/2103/files/radiant-cut-diamond-cathedral-engagement-ring_1.jpg?v=1764373450","https://cdn.shopify.com/s/files/1/2065/2103/files/Radiant-Cut-Lab-Diamond-Cathedral-Rings.jpg?v=1764373450","https://cdn.shopify.com/s/files/1/2065/2103/files/radiant-cut-diamond-engagement-ring_1.jpg?v=1764373450","https://cdn.shopify.com/s/files/1/2065/2103/files/radiant-cut-diamond-engagement-wedding-ring_1.jpg?v=1764373450","https://cdn.shopify.com/s/files/1/2065/2103/files/Automic-engagement-ring-box-open_200.jpg?v=1764373450","https://cdn.shopify.com/s/files/1/2065/2103/files/Automic-gold-engagement-ring-box-closed_200.jpg?v=1764373450","https://cdn.shopify.com/s/files/1/2065/2103/files/white-gold-radiant-cut-diamond-ring_2.jpg?v=1762531920","https://cdn.shopify.com/s/files/1/2065/2103/files/rose-gold-radiant-cut-diamond-ring_2.jpg?v=1762531920","https://cdn.shopify.com/s/files/1/2065/2103/files/champagne-gold-radiant-cut-diamond-ring_2.jpg?v=1762531920","https://cdn.shopify.com/s/files/1/2065/2103/files/950-platinum-radiant-cut-diamond-ring_2.jpg?v=1762531920"],"price":3074,"currency":"USD","in_stock":true,"inventory_qty":59994,"dynamic_pricing":false,"listed_at":"2026-06-18T20:45:42.643Z"},"share_url":"https://firestarter.network/l/lst_JReGZTLt","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_JReGZTLt' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy 3ct Radiant Cut Lab Diamond Cathedral Ring' and a budget_max comfortably above $3074.00 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."]}}