Where Does Zales Source Its Diamonds? Not Holland or Belgium.
Neither. Zales (a Signet Jewelers brand) does not purchase diamonds primarily from Holland (Amsterdam) or Belgium (Antwerp)—the traditional cutting/trading hubs. Instead, Signet's Responsible Sourcing Protocol acquires rough and polished diamonds through authorized, contracted suppliers across multiple countries, including:
- Botswana (Debswana partnership — major source)
- Canada (Diavik, Ekati, Gahcho Kué)
- South Africa (De Beers/Venidia mines)
- Namibia (Namdeb offshore/alluvial)
- Angola (Catoca)
- Russia (Alrosa — though Signet paused Russian sourcing post-2022 sanctions)
- India (cutting/polishing hub — Surat, Mumbai)
- Israel, UAE, China, Vietnam (manufacturing centers)
Why Not Amsterdam/Antwerp Direct?
- Antwerp remains the world's largest diamond trade hub (~80% of rough, 50% of polished pass through), but Signet vertically integrates: buys closer to mine, cuts at partnered factories (India, Botswana, Namibia, China), ships to distribution.
- This reduces intermediaries, improves traceability (Kimberley Process + Signet's own audits), and controls cost.
Consumer Takeaway
Zales diamonds come with a Signet Diamond Certificate (not GIA/AGS typically) and a Lifetime Diamond Commitment (trade-in, upgrade). Ask for the country of origin and Kimberley Process warranty at purchase—they're required to provide it.