De Beers Tracr Names Jillian Wolk CEO to Scale Diamond Traceability

Before you spend a significant sum on a natural diamond, the most important question you can ask is not about cut or carat. It is: can you prove where this stone has been? That question is now at the center of a leadership change at De Beers' Tracr, the blockchain platform built to answer it, and the appointment of a new chief executive signals an accelerating push to make digital chain-of-custody the industry norm rather than a premium exception.

Tracr named Jillian Wolk as its new chief executive officer, effective May 1, 2026. She succeeds Wesley Tucker, who stepped down at the end of February after five years with De Beers scaling the platform through its formative and expansion phases. Her prior collaboration with Tracr, developed during her time at the GIA, gives her a strong understanding of the platform's mission and capabilities.

Wolk most recently served as vice president of growth and strategic initiatives at the GIA for four years, where she developed new services, drove diversified revenue, strengthened commercial strategy, and supported significant industry-wide grading initiatives. Before the GIA, she held senior executive roles including vice president of business operations at Swarovski U.S., where she oversaw multiple business lines and led large-scale operational and brand projects across the Americas. She will be based in New York, working closely with Tracr's global team and stakeholder network.

Tracr, developed by De Beers in collaboration with Accenture, is an industry-first blockchain platform that creates a traceable and tamper-proof record of a diamond's provenance from the source. After diamonds are registered on Tracr at the producer level, they are assigned a unique digital identity that details key characteristics like carat, clarity, and color. The platform has tracked 2.8 million diamonds to date.

Paul Rowley, executive vice president of diamond trading at De Beers Group, said Wolk "brings a strong combination of industry knowledge, commercial leadership and strategic insight," adding that "her insights across jewelry, technology and governance, together with her background working with Tracr, provide her with a wealth of valuable experience to lead the business into its next phase."

Wolk herself framed the platform's purpose in terms that matter directly to buyers: "I am honored to be joining Tracr and help shape its future as a vital storytelling tool for the diamond industry. With its leading technology platform and industry network, Tracr has an increasingly significant role to play in supporting trust, transparency and confidence across the diamond industry."

That word, storytelling, is worth pausing on. Provenance documentation is not just a compliance exercise. At the point of purchase, what you should be able to request from a retailer selling a Tracr-registered stone is a verifiable digital record: the mine of origin, each transfer of custody through cutting and polishing, and a blockchain-backed certificate tied to the stone's unique identity. "Ethically sourced" without that documentation chain is a marketing phrase, not a guarantee. Ask specifically for a Tracr digital passport or equivalent chain-of-custody record linked to the stone's unique ID. If a retailer can offer only a general country-of-origin claim, or cites a supplier's self-certification without a third-party verified ledger, that is a meaningful gap in accountability.

Wolk's background spanning commercial leadership, legal and governance knowledge, and technology-fueled innovation is precisely what Tracr identified as preparation to build trusted, scalable traceability solutions for the diamond industry. The question her tenure will ultimately answer is whether that infrastructure becomes universal enough that buyers can expect it as standard, rather than seeking it out as a specialty feature.