{"type":"firestarter.listing","listing":{"id":"lst_Z17CmGD8","product_name":"Knife Edge Band","category":"Ring","description":"The Knife Edge Wedding Band is a 4mm silver wedding band made of recycled sterling silver. It features a raised center line, known as a knife edge, that runs all the way around the ring. The band has a satin finish.\nDetails\n\nRecycled sterling silver\nSatin finish\n\n\nKnife Edge Band\nThe knife edge adds structure and definition to the band. The satin finish reduces shine and gives it a matte look that hides small scratches better over time.\nSterling silver carries clarity, reflection and honesty. It's strong enough for daily wear, but will show wear over time, marking how you live in it. This is a band that changes with you and records the years instead of hiding them.\nThe 4mm width gives it presence without taking over. This silver wedding band works well as a men’s wedding ring, and we can make a slimmer version if you want a matching set of wedding bands. You can also add engraving on the inside.\nOther sizes, other widths or plain shiny finish can be made upon request. \nReady to ship\nThis soft Knife Edge Band is ready to ship, which takes 3 to 5 business days worldwide.\nRecycled sterling silver\nWe work with a local refiner who recycles silver from post-consumer sources, like old jewelry, silverware, and even silver recovered from x-rays and other medical waste. This doesn’t stop new silver from being mined (most silver is a byproduct of other metals anyway), but it does cut emissions by about 8x compared to newly mined silver. And it keeps what already exists in circulation, instead of letting it go to waste.\nWant to join in? If you have old silver jewelry or silverware gathering dust, you can bring it to our showroom. We’ll recycle it and give you shop credit in return.\nHow to care for your jewelry\nOver time, silver tends to tarnish, reflecting its personal journey with you. Depending on your environment, exposure to air, moisture, chemicals, and sebum, this process can speed up. Many find that this natural aging adds charm and character to each piece of jewelry.\nIf","images":["https://cdn.shopify.com/s/files/1/1205/9982/files/Knife_Edge_Band.jpg?v=1774245197","https://cdn.shopify.com/s/files/1/1205/9982/files/KnifeEdgeBand_7.jpg?v=1774234695","https://cdn.shopify.com/s/files/1/1205/9982/files/KnifeEdgeBand_5.jpg?v=1774234705","https://cdn.shopify.com/s/files/1/1205/9982/files/KnifeEdgeBand_6.jpg?v=1774234706","https://cdn.shopify.com/s/files/1/1205/9982/files/GTS00033_e62fc8df-857a-4f1e-bbbf-820456d6999c.jpg?v=1775115803","https://cdn.shopify.com/s/files/1/1205/9982/files/Sterling_Silver_Knife_Edge_Band.jpg?v=1775115803","https://cdn.shopify.com/s/files/1/1205/9982/files/Silver_Knife_Edge_Band.jpg?v=1775115803","https://cdn.shopify.com/s/files/1/1205/9982/files/KnifeEdgeBand_12.jpg?v=1775115803","https://cdn.shopify.com/s/files/1/1205/9982/files/GTS00030_2eefc7cd-ff67-4854-ad5e-25ca7f5bf582.jpg?v=1775115803","https://cdn.shopify.com/s/files/1/1205/9982/files/Knife_Edge_Band_in_Silver.jpg?v=1775115803","https://cdn.shopify.com/s/files/1/1205/9982/files/Soft_Knife_Edge_Band_in_Silver.jpg?v=1775115803","https://cdn.shopify.com/s/files/1/1205/9982/files/GTS00036_d6019670-94ea-48d2-85ab-4253175e7895.jpg?v=1775115803","https://cdn.shopify.com/s/files/1/1205/9982/files/Soft_Knife_Edge_Band_in_Sterling_Silver.jpg?v=1775115803","https://cdn.shopify.com/s/files/1/1205/9982/files/GOT07969_ed76bcff-397e-455d-ba15-0a4dbaa4f292.jpg?v=1775115803"],"price":129,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-06-18T20:45:27.218Z"},"share_url":"https://firestarter.network/l/lst_Z17CmGD8","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_Z17CmGD8' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Knife Edge Band' and a budget_max comfortably above $129.00 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."]}}