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MGS Refining is a B2B precious metals refinery serving businesses in NYC’s Diamond District and beyond, offering refining, testing, and recycling of gold, silver, platinum, palladium, rhodium, and related materials. Their process lets a seller describe what they’re selling, receive an instant market-based estimate, ship or deliver metals securely to the refinery, and receive a same-day payout after verification. They provide pricing data, tools, and testing methods (acid testing, ultrasound, XRF, fire assay) and note that silver purchases are temporarily on hold and they do not buy scrap gold from the public except coins and bars.
AI named Manhattan Gold & Silver in January 2026.