Jewelry Sourcing Agent (India or China) — Custom Lab-Grown Diamond Pendant + Chain, Factory-Direct

I'm a US buyer commissioning a high-end custom piece factory-direct and I need an experienced jewelry-trade sourcing agent on the ground (or with existing factory relationships) in Surat/Mumbai, India or Guangzhou/Wuzhou, China. I already have the complete manufacturing spec — a factory CAD sheet with a stone-by-stone sieve breakdown (10K gold pendant, 55–58 g, ~1,224 lab-grown diamond stones, ~15–16 ct total) plus reference photos of the matching two-tone diamond chain. This is NOT a "help me figure out what I want" job. The spec is done. I need the right factory — the best, not the cheapest. The full spec sheet goes to shortlisted candidates only. YOU WILL: 1. Shortlist 3–5 factories with PROVEN iced-out micro-pave and baguette channel-setting work (portfolio photos/videos required — their own work, not catalog renders) 2. Collect itemized quotes against my spec: gold / stones / labor / DDP-USA shipping including import duty 3. Verify legitimacy: business license, export history, live video call from the factory floor 4. Negotiate price and terms (max 30% deposit, milestone payments, Trade Assurance/escrow) 5. Set QC gates: CAD approval, casting photos, pre-ship HD macro video, on-camera weigh-in, dual diamond/moissanite tester pass, random melee parcel screening DELIVERABLES: - Vendor comparison sheet with landed-USA cost for each factory - Introduction + agreed terms with the winning factory REQUIREMENTS: - Jewelry/gems trade sourcing experience — show past jewelry sourcing results, not generic product sourcing - Hindi/Gujarati (India) or Mandarin (China) plus English - You understand lab-grown diamond vs moissanite and how factories cheat (hollow links, underkarat gold, moissanite swap). Tell me in your proposal the #1 scam you would screen for — proposals that skip this get rejected. - References available BUDGET: $500 fixed, milestone-based (Milestone 1: verified shortlist + itemized quotes in 7 days. Milestone 2: winning factory + agreed terms by day 14). I pay for quality — if you have a proven elite track record sourcing fine jewelry at this level, name your price in your proposal and I will consider it. Long-term relationship likely: more custom pieces will follow if you deliver.