Built like the returns it files.
Founded in 1983, Gemcore Black Diamond is a boutique tax preparation firm staffed by credentialed preparers and reviewed by partners. We serve a limited roster of individuals, families, and businesses — by design.

Precision
Every return is prepared by a credentialed preparer and reviewed by a partner before it's filed.
Discretion
A single preparer owns your return end to end. No offshore hand-off, no seasonal temp pool.
Stewardship
We measure success in returns filed right the first time — not in hours billed.
The partners
Every return is reviewed by one of them.Eleanor Vance
Managing Partner
Individual & High-Net-Worth
Marcus Reed
Partner
Business & Entity Returns
Priya Anand
Partner
Estate, Trust & Nonprofit
David Okafor
Partner
Multi-State & Amended
“We file twelve thousand returns a year and turn away twice that. A diamond is valuable because it is cut with precision — we keep our practice the same way.”
Eleanor Vance — Managing Partner
