Crafting Excellence Since 1970

A Legacy of Unmatched Quality

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THE TIROCHE SIGNATURE

A second-generation house built on rare expertise and absolute precision.

LEGACY

Since 1970

A second-generation family house built on mastery. The Tiroche family has shaped the art of large-diamond manufacturing. What began as a craftsman's pursuit is now a second-generation house defined by discipline, integrity, and an unwavering commitment to excellence. Our legacy is built facet by facet.

ROUGH DIAMOND INVENTORY

Source Material

Specialization

Solitaires from 2ct to 100ct+, with a particular focus on stones above 5ct.

A second-generation house manufacturing exceptional solitaires since 1970 — each stone planned, cut and polished in-house to maximize brilliance and value.

Optimizing Brilliance 0%

Precision

Every facet engineered to perfection.

Precision is the foundation of our craft. Every proportion, angle, and facet is calibrated with meticulous attention to ensure flawless light performance. From rough to polish, nothing is left to chance. Each stone reflects a disciplined pursuit of perfection, creating a brilliance that is unmistakably superior.

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The Process

Rough Selection

We acquire only the finest rough diamonds, selecting for exceptional clarity, size, and potential yield. Each stone is evaluated for its ability to produce a top-tier polished result, minimizing loss while maximizing brilliance and market value.

Planning & Mapping

Using advanced 3D scanning and proprietary software, we map every inclusion, angle, and facet opportunity. Our planning process ensures the highest value output by optimizing cut proportions and minimizing wastage from rough to finished stone.

Precision Cutting

Every cut is calculated for brilliance and carat retention. Our master cutters work with exacting precision using laser and handcraft techniques that balance yield, symmetry, and sparkle — creating polished stones with industry-leading light return.

Master Polishing

Each facet is polished by master artisans to ensure high-clarity reflection, premium finish, and optical precision. This final refinement elevates the stone's value, ensuring it meets global trade expectations for premium solitaires.