GZ Group

Laurence Graff, the founder and chairman of Graff Diamonds, is understood to exercise direct control over GZ Group's investment decisions. The office reflects his personal investment philosophy—favoring prime real estate and hospitality assets that align with the Graff brand. No external investment committee or CIO-level appointments are publicly disclosed.

The capital originates from Laurence Graff's ownership of Graff Diamonds, the vertically integrated jewelry business he founded in London in 1960. Graff Diamonds is one of the world's largest diamond jewelry retailers, with boutiques in cities including New York, Monaco, and Hong Kong, and has historically maintained interests in diamond mining and cutting operations.

Yes, GZ Group functions as a single-family office for the Graff family, but with a narrower mandate than many institutionalized peers. It does not appear to pursue fund commitments, venture capital, or multi-asset-class diversification. The structure closely mirrors the founder's personal asset preferences rather than an externally advised institutional portfolio.

The strategy concentrates on direct ownership of freehold properties in ultra-prime London submarkets, particularly Mayfair. Acquisitions often serve a dual purpose—providing flagship retail locations for Graff Diamonds while building long-term equity in supply-constrained trophy assets. The firm holds properties for decades and rarely sells.

There is no public evidence that GZ Group participates in club deals, fund-of-funds, or co-investments alongside external GPs. The office's activity suggests a preference for wholly owned, directly controlled assets without external joint-venture partners on the investment side.