Services

A private jewelry house for sourcing, design, care, and certification.

From first diamond consultation to ongoing care, every service is handled with discretion, precision, and a collector’s eye.

Diamond Consultation

Guided selection by cut, clarity, origin, and budget for natural and laboratory grown stones.

Custom Jewelry Design

A bespoke process from sketch and stone sourcing to finished heirloom setting.

Jewelry Repair

Meticulous restoration for treasured pieces, prongs, clasps, settings, and finishes.

Ring Resizing

Precise sizing adjustments that preserve comfort, setting integrity, and proportions.

Diamond Certification

Support for documentation, grading details, and confidence in diamond provenance.

Jewelry Cleaning

Professional cleaning and inspection to protect brilliance and daily wear longevity.

Jewelry Appraisal

Valuation guidance for insurance, resale considerations, and legacy planning.

Private Appointments

Concierge consultations for engagement rings, investment stones, and heirloom redesigns.

H2GemHaus

Fine diamond jewelry, custom design, and private consultation for heirlooms crafted to last generations.

© 2026 H2GemHaus. Private jewelry appointments worldwide.