About us

The people behind your next investment

Veristone is a private, investment‑oriented diamond and gemstone company built around discretion, expertise, and documented quality.

Our Values

Documentation and Transparency

Discretion

Your objectives and identity are always protected.

Documentation

Every stone is accompanied by trusted, verifiable reports.

Precision

We pursue exceptional quality with meticulous scrutiny.

Stewardship

We think in decades and long term, not transactions.

OWNER & FOUNDER

Helmut Bretterbauer

Helmut leads private client relationships at Veristone, focusing on rare, high‑quality diamonds and gemstones acquired for long‑term preservation.

With over two decades of experience in the global gemstone industry, he sources exceptional stones, oversees documentation and provenance, and guides each acquisition with a long‑term perspective and absolute discretion.

His approach is personal, rigorous, and independent—ensuring clients acquire with confidence and clarity.

Discreet Advisory

Private Network

Certified Review

25+ Years

STRATEGIC ADVISOR

Nadine Rührlechner

Nadine supports Veristone's strategic development, client experience, and brand trust.

With a background in private client services and international business, she ensures that every interaction reflects the care, clarity, and professionalism our clients expect.

Who we Work with

Our Partners

Family Offices

International Private Clients

Entrepreneurs

Collectors

Long‑Term Asset Holders

How we evaluate and prepare each stone.

Preserve your legacy. Veristone exists for clients who view wealth as something to protect, document and pass forward with intention. Be among the first comers.