Graham Global Gems

Since the inception of our company in 1984 , Michael A. Graham has stood at the pinnacle of the international gemstone trade, orchestrating high-stakes transactions that have redefined the luxury market. A master negotiator and trusted confidant to royalty, billionaires, and elite institutions. Michael has brokered multi-million-dollar deals and spearheaded complex acquisitions surpassing the $1.5 billion mark, solidifying his reputation as a titan in the world of rare jewels.

Trusted by the Saudi Royal Family for two decades to source rarities like Kashmir sapphires and Paraíba tourmalines, Michael operates discreetly for clients who demand perfection. His firm’s vertically integrated services-certification, appraisal, and bespoke brokerage-are bolstered by a team of 15 expert gemologists and negotiators, ensuring seamless execution for high-net-worth collectors and luxury brands like Cartier and Van Cleef & Arpels.

Beyond transactions, Michael thrives as a global connector, merging artistry with commerce across six continents. “Gems are Earth’s storytellers,” he remarks. “A single stone bridges Brazilian rainforests, Dubai skyscrapers, and Manhattan penthouse safes.” When not advising clients from his Fifth Avenue atelier, he mentors emerging dealers through AGTA initiatives, proving that true legacy is carved in more than carats.

Where vision meets value, Michael A. Graham transforms rarity into legacy.

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