47th Street Diamond District jewellery e-com, what's your playbook?

The 47th Street Diamond District is the largest jewellery cluster in the world, thousands of independent dealers across one Manhattan block. We have a specific Magento playbook for this vertical. (1) Per-item GIA / IGI certificate, every loose diamond has a unique certificate PDF; we wire Magento product attributes to certificate-number lookup + PDF preview on PDP. (2) Made-to-order configurator, ring head + setting + stone size + metal selector with live price recalculation. (3) High-AOV checkout, orders > $25k need Stripe + Adyen tokenisation, Plaid bank-verification, ID-verification (Persona / Veriff), and often white-glove courier dispatch (Brinks / Malca-Amit). (4) Insurance bundling, Jewelers Mutual + BriteCo integration at checkout. (5) Trade-customer wholesale tier, resale-certificate-gated pricing for B2B dealers, Amex Open Pay Net-30. (6) NYC sales tax, jewellery is NOT clothing-exempt (always taxed at 8.875%), out-of-NY shipments use destination-based rules. (7) Hanukkah + Valentine’s + Christmas peak war-room.