Structured data is a contract between your website and machines. When you embed JSON-LD (JavaScript Object Notation for Linked Data) markup in your product page, you're saying: "This is a diamond ring, it costs $2,500, it's in stock, and here's the GTIN." Agents parse this markup before they click, so they know what they're buying before viewing the page.
Without structured data, agents see raw HTML and must guess: Is "Item A" in stock? What's the real price? AI models are good at guessing, but guessing leaves room for error and fraud. With JSON-LD, there's no ambiguity. Merchants who implement it gain agent trust and higher conversion rates. Merchants who skip it look risky.
For jewelry, schema compliance is particularly important because jewelry products are high-value and complex. A ring has materials (14k gold, diamond, sapphire), dimensions, weight, certifications (GIA, AGS), and care instructions. JSON-LD lets you express all of this in a format agents understand. Arbling generates or validates JSON-LD for jewelry catalogs to ensure every listing is machine-readable and trustworthy.
Use Google's Rich Results Test to see whether your JSON-LD is valid before deploying it.