Graff

Graff Diamonds operates as a British luxury jeweller renowned for its expertise in diamonds and high‑end jewellery. The company designs, manufactures and retails a range of products that include diamond‑set rings, necklaces, bracelets, earrings and luxury timepieces. Its offerings are aimed at affluent customers who seek bespoke creations as well as ready‑to‑wear pieces bearing the Graff signature. While the firm’s roots are in the United Kingdom, it serves an international clientele.

In October 2021 Graff Diamonds became the target of a ransomware attack carried out by the Conti group. The attackers gained access to the company’s network and exfiltrated a large volume of sensitive client data, including purchase histories and personal details of high‑profile individuals. As proof of the breach, Conti leaked approximately 69 000 documents, which represented about one percent of the stolen files, and threatened to release further material unless a multi‑million dollar ransom was paid. Upon detecting the intrusion, Graff shut down its affected systems, engaged law‑enforcement officials, notified affected clients and worked to restore operations within days, reporting that no permanent data loss occurred.

Graff’s distinguishing attributes stem from its deep specialization in diamond sourcing, cutting and setting, a expertise that has been cultivated since the firm’s inception. The company is known for handling some of the world’s largest and most exceptional diamonds, often overseeing the entire process from rough stone to finished jewel. This vertical integration allows Graff to maintain strict quality control and to offer clients unique, one‑of‑a‑kind pieces that frequently appear in high‑profile auctions and exhibitions. Its reputation for craftsmanship and innovation has positioned it as a leading name in the luxury jewellery sector.

Structurally, Graff Diamonds remains a privately held enterprise founded by Laurence Graff in 1960 and continues to be owned and managed by the Graff family. The company’s headquarters are located in London, United Kingdom, from where it oversees its design, production and retail operations. No public information indicates a parent company or subsidiary structure beyond the family‑owned core business.